[gnome-continuous-yocto/gnomeostree-3.28-rocko: 167/218] gcc6: Backport few more patches
- From: Emmanuele Bassi <ebassi src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gnome-continuous-yocto/gnomeostree-3.28-rocko: 167/218] gcc6: Backport few more patches
- Date: Mon, 21 May 2018 08:49:17 +0000 (UTC)
commit 6f57e8a418dfd917e492ee51485d8934d4696a39
Author: Juro Bystricky <juro bystricky intel com>
Date: Thu Mar 1 10:32:43 2018 -0800
gcc6: Backport few more patches
Backported series of patches from https://github.com/hjl-tools/gcc.git
branch /hjl/indirect/gcc-6-branch/master which contains
an IA patch series for security related issues
(From OE-Core rev: f59291f9a3a7ef65206ef0503ce27eb61dc95caf)
Signed-off-by: Juro Bystricky <juro bystricky intel com>
Signed-off-by: Martin Jansa <Martin Jansa gmail com>
Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>
meta/recipes-devtools/gcc/gcc-6.4.inc | 13 +
...ove-struct-ix86_frame-to-machine_function.patch | 247 +++
...ference-of-struct-ix86_frame-to-avoid-cop.patch | 74 +
...nst-reference-of-struct-ix86_frame-to-avo.patch | 131 ++
.../backport/0004-x86-Add-mindirect-branch.patch | 2154 ++++++++++++++++++++
.../backport/0005-x86-Add-mfunction-return.patch | 1570 ++++++++++++++
.../0006-x86-Add-mindirect-branch-register.patch | 946 +++++++++
.../0007-x86-Add-V-register-operand-modifier.patch | 139 ++
...w-mindirect-branch-mfunction-return-with-.patch | 304 +++
...VALID_REGNUM-in-indirect-thunk-processing.patch | 126 ++
...INVALID_REGNUM-as-invalid-register-number.patch | 46 +
...date-mfunction-return-for-return-with-pop.patch | 453 ++++
...-i386-Add-TARGET_INDIRECT_BRANCH_REGISTER.patch | 1004 +++++++++
13 files changed, 7207 insertions(+), 0 deletions(-)
---
diff --git a/meta/recipes-devtools/gcc/gcc-6.4.inc b/meta/recipes-devtools/gcc/gcc-6.4.inc
index 1a4a0ed..0216f57 100644
--- a/meta/recipes-devtools/gcc/gcc-6.4.inc
+++ b/meta/recipes-devtools/gcc/gcc-6.4.inc
@@ -82,7 +82,20 @@ BACKPORTS = "\
file://CVE-2016-6131.patch \
file://0057-ARM-PR-82445-suppress-32-bit-aligned-ldrd-strd-peeph.patch \
file://0001-enable-FL_LPAE-flag-for-armv7ve-cores.patch \
+ file://0001-i386-Move-struct-ix86_frame-to-machine_function.patch \
+ file://0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.patch \
+ file://0003-i386-Use-const-reference-of-struct-ix86_frame-to-avo.patch \
+ file://0004-x86-Add-mindirect-branch.patch \
+ file://0005-x86-Add-mfunction-return.patch \
+ file://0006-x86-Add-mindirect-branch-register.patch \
+ file://0007-x86-Add-V-register-operand-modifier.patch \
+ file://0008-x86-Disallow-mindirect-branch-mfunction-return-with-.patch \
+ file://0009-Use-INVALID_REGNUM-in-indirect-thunk-processing.patch \
+ file://0010-i386-Pass-INVALID_REGNUM-as-invalid-register-number.patch \
+ file://0011-i386-Update-mfunction-return-for-return-with-pop.patch \
+ file://0012-i386-Add-TARGET_INDIRECT_BRANCH_REGISTER.patch \
"
+
SRC_URI[md5sum] = "11ba51a0cfb8471927f387c8895fe232"
SRC_URI[sha256sum] = "850bf21eafdfe5cd5f6827148184c08c4a0852a37ccf36ce69855334d2c914d4"
diff --git
a/meta/recipes-devtools/gcc/gcc-6.4/backport/0001-i386-Move-struct-ix86_frame-to-machine_function.patch
b/meta/recipes-devtools/gcc/gcc-6.4/backport/0001-i386-Move-struct-ix86_frame-to-machine_function.patch
new file mode 100644
index 0000000..00b0ffd
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-6.4/backport/0001-i386-Move-struct-ix86_frame-to-machine_function.patch
@@ -0,0 +1,247 @@
+From c2c7775c5587dc59b6756162d390d89d60971a16 Mon Sep 17 00:00:00 2001
+From: hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Mon, 15 Jan 2018 11:27:24 +0000
+Subject: [PATCH 01/12] i386: Move struct ix86_frame to machine_function
+
+Make ix86_frame available to i386 code generation. This is needed to
+backport the patch set of -mindirect-branch= to mitigate variant #2 of
+the speculative execution vulnerabilities on x86 processors identified
+by CVE-2017-5715, aka Spectre.
+
+ Backport from mainline
+ 2017-06-01 Bernd Edlinger <bernd edlinger hotmail de>
+
+ * config/i386/i386.c (ix86_frame): Moved to ...
+ * config/i386/i386.h (ix86_frame): Here.
+ (machine_function): Add frame.
+ * config/i386/i386.c (ix86_compute_frame_layout): Repace the
+ frame argument with &cfun->machine->frame.
+ (ix86_can_use_return_insn_p): Don't pass &frame to
+ ix86_compute_frame_layout. Copy frame from cfun->machine->frame.
+ (ix86_can_eliminate): Likewise.
+ (ix86_expand_prologue): Likewise.
+ (ix86_expand_epilogue): Likewise.
+ (ix86_expand_split_stack_prologue): Likewise.
+
+
+Upstream-Status: Pending
+
+Signed-off-by: Juro Bystricky <juro bystricky intel com>
+
+---
+ gcc/config/i386/i386.c | 68 ++++++++++----------------------------------------
+ gcc/config/i386/i386.h | 53 ++++++++++++++++++++++++++++++++++++++-
+ 2 files changed, 65 insertions(+), 56 deletions(-)
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 8b5faac..a1ff32b 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -2434,53 +2434,6 @@ struct GTY(()) stack_local_entry {
+ struct stack_local_entry *next;
+ };
+
+-/* Structure describing stack frame layout.
+- Stack grows downward:
+-
+- [arguments]
+- <- ARG_POINTER
+- saved pc
+-
+- saved static chain if ix86_static_chain_on_stack
+-
+- saved frame pointer if frame_pointer_needed
+- <- HARD_FRAME_POINTER
+- [saved regs]
+- <- regs_save_offset
+- [padding0]
+-
+- [saved SSE regs]
+- <- sse_regs_save_offset
+- [padding1] |
+- | <- FRAME_POINTER
+- [va_arg registers] |
+- |
+- [frame] |
+- |
+- [padding2] | = to_allocate
+- <- STACK_POINTER
+- */
+-struct ix86_frame
+-{
+- int nsseregs;
+- int nregs;
+- int va_arg_size;
+- int red_zone_size;
+- int outgoing_arguments_size;
+-
+- /* The offsets relative to ARG_POINTER. */
+- HOST_WIDE_INT frame_pointer_offset;
+- HOST_WIDE_INT hard_frame_pointer_offset;
+- HOST_WIDE_INT stack_pointer_offset;
+- HOST_WIDE_INT hfp_save_offset;
+- HOST_WIDE_INT reg_save_offset;
+- HOST_WIDE_INT sse_reg_save_offset;
+-
+- /* When save_regs_using_mov is set, emit prologue using
+- move instead of push instructions. */
+- bool save_regs_using_mov;
+-};
+-
+ /* Which cpu are we scheduling for. */
+ enum attr_cpu ix86_schedule;
+
+@@ -2572,7 +2525,7 @@ static unsigned int ix86_function_arg_boundary (machine_mode,
+ const_tree);
+ static rtx ix86_static_chain (const_tree, bool);
+ static int ix86_function_regparm (const_tree, const_tree);
+-static void ix86_compute_frame_layout (struct ix86_frame *);
++static void ix86_compute_frame_layout (void);
+ static bool ix86_expand_vector_init_one_nonzero (bool, machine_mode,
+ rtx, rtx, int);
+ static void ix86_add_new_builtins (HOST_WIDE_INT);
+@@ -10944,7 +10897,8 @@ ix86_can_use_return_insn_p (void)
+ if (crtl->args.pops_args && crtl->args.size >= 32768)
+ return 0;
+
+- ix86_compute_frame_layout (&frame);
++ ix86_compute_frame_layout ();
++ frame = cfun->machine->frame;
+ return (frame.stack_pointer_offset == UNITS_PER_WORD
+ && (frame.nregs + frame.nsseregs) == 0);
+ }
+@@ -11355,8 +11309,8 @@ ix86_can_eliminate (const int from, const int to)
+ HOST_WIDE_INT
+ ix86_initial_elimination_offset (int from, int to)
+ {
+- struct ix86_frame frame;
+- ix86_compute_frame_layout (&frame);
++ ix86_compute_frame_layout ();
++ struct ix86_frame frame = cfun->machine->frame;
+
+ if (from == ARG_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM)
+ return frame.hard_frame_pointer_offset;
+@@ -11395,8 +11349,9 @@ ix86_builtin_setjmp_frame_value (void)
+ /* Fill structure ix86_frame about frame of currently computed function. */
+
+ static void
+-ix86_compute_frame_layout (struct ix86_frame *frame)
++ix86_compute_frame_layout (void)
+ {
++ struct ix86_frame *frame = &cfun->machine->frame;
+ unsigned HOST_WIDE_INT stack_alignment_needed;
+ HOST_WIDE_INT offset;
+ unsigned HOST_WIDE_INT preferred_alignment;
+@@ -12702,7 +12657,8 @@ ix86_expand_prologue (void)
+ m->fs.sp_offset = INCOMING_FRAME_SP_OFFSET;
+ m->fs.sp_valid = true;
+
+- ix86_compute_frame_layout (&frame);
++ ix86_compute_frame_layout ();
++ frame = m->frame;
+
+ if (!TARGET_64BIT && ix86_function_ms_hook_prologue (current_function_decl))
+ {
+@@ -13379,7 +13335,8 @@ ix86_expand_epilogue (int style)
+ bool using_drap;
+
+ ix86_finalize_stack_realign_flags ();
+- ix86_compute_frame_layout (&frame);
++ ix86_compute_frame_layout ();
++ frame = m->frame;
+
+ m->fs.sp_valid = (!frame_pointer_needed
+ || (crtl->sp_is_unchanging
+@@ -13876,7 +13833,8 @@ ix86_expand_split_stack_prologue (void)
+ gcc_assert (flag_split_stack && reload_completed);
+
+ ix86_finalize_stack_realign_flags ();
+- ix86_compute_frame_layout (&frame);
++ ix86_compute_frame_layout ();
++ frame = cfun->machine->frame;
+ allocate = frame.stack_pointer_offset - INCOMING_FRAME_SP_OFFSET;
+
+ /* This is the label we will branch to if we have enough stack
+diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
+index 8113f83..5414416 100644
+--- a/gcc/config/i386/i386.h
++++ b/gcc/config/i386/i386.h
+@@ -2427,9 +2427,56 @@ enum avx_u128_state
+
+ #define FASTCALL_PREFIX '@'
+
++#ifndef USED_FOR_TARGET
++/* Structure describing stack frame layout.
++ Stack grows downward:
++
++ [arguments]
++ <- ARG_POINTER
++ saved pc
++
++ saved static chain if ix86_static_chain_on_stack
++
++ saved frame pointer if frame_pointer_needed
++ <- HARD_FRAME_POINTER
++ [saved regs]
++ <- regs_save_offset
++ [padding0]
++
++ [saved SSE regs]
++ <- sse_regs_save_offset
++ [padding1] |
++ | <- FRAME_POINTER
++ [va_arg registers] |
++ |
++ [frame] |
++ |
++ [padding2] | = to_allocate
++ <- STACK_POINTER
++ */
++struct GTY(()) ix86_frame
++{
++ int nsseregs;
++ int nregs;
++ int va_arg_size;
++ int red_zone_size;
++ int outgoing_arguments_size;
++
++ /* The offsets relative to ARG_POINTER. */
++ HOST_WIDE_INT frame_pointer_offset;
++ HOST_WIDE_INT hard_frame_pointer_offset;
++ HOST_WIDE_INT stack_pointer_offset;
++ HOST_WIDE_INT hfp_save_offset;
++ HOST_WIDE_INT reg_save_offset;
++ HOST_WIDE_INT sse_reg_save_offset;
++
++ /* When save_regs_using_mov is set, emit prologue using
++ move instead of push instructions. */
++ bool save_regs_using_mov;
++};
++
+ /* Machine specific frame tracking during prologue/epilogue generation. */
+
+-#ifndef USED_FOR_TARGET
+ struct GTY(()) machine_frame_state
+ {
+ /* This pair tracks the currently active CFA as reg+offset. When reg
+@@ -2475,6 +2522,9 @@ struct GTY(()) machine_function {
+ int varargs_fpr_size;
+ int optimize_mode_switching[MAX_386_ENTITIES];
+
++ /* Cached initial frame layout for the current function. */
++ struct ix86_frame frame;
++
+ /* Number of saved registers USE_FAST_PROLOGUE_EPILOGUE
+ has been computed for. */
+ int use_fast_prologue_epilogue_nregs;
+@@ -2554,6 +2604,7 @@ struct GTY(()) machine_function {
+ #define ix86_current_function_calls_tls_descriptor \
+ (ix86_tls_descriptor_calls_expanded_in_cfun && df_regs_ever_live_p (SP_REG))
+ #define ix86_static_chain_on_stack (cfun->machine->static_chain_on_stack)
++#define ix86_red_zone_size (cfun->machine->frame.red_zone_size)
+
+ /* Control behavior of x86_file_start. */
+ #define X86_FILE_START_VERSION_DIRECTIVE false
+--
+2.7.4
+
diff --git
a/meta/recipes-devtools/gcc/gcc-6.4/backport/0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.patch
b/meta/recipes-devtools/gcc/gcc-6.4/backport/0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.patch
new file mode 100644
index 0000000..df65b08
--- /dev/null
+++
b/meta/recipes-devtools/gcc/gcc-6.4/backport/0002-i386-Use-reference-of-struct-ix86_frame-to-avoid-cop.patch
@@ -0,0 +1,74 @@
+From fe2b3be3f4b6ec6b3a6f89c26016a3983b7cb351 Mon Sep 17 00:00:00 2001
+From: hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Mon, 15 Jan 2018 11:28:44 +0000
+Subject: [PATCH 02/12] i386: Use reference of struct ix86_frame to avoid copy
+
+When there is no need to make a copy of ix86_frame, we can use reference
+of struct ix86_frame to avoid copy.
+
+ Backport from mainline
+ 2017-11-06 H.J. Lu <hongjiu lu intel com>
+
+ * config/i386/i386.c (ix86_can_use_return_insn_p): Use reference
+ of struct ix86_frame.
+ (ix86_initial_elimination_offset): Likewise.
+ (ix86_expand_split_stack_prologue): Likewise.
+
+Upstream-Status: Pending
+
+Signed-off-by: Juro Bystricky <juro bystricky intel com>
+
+---
+ gcc/config/i386/i386.c | 8 +++-----
+ 1 file changed, 3 insertions(+), 5 deletions(-)
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index a1ff32b..13ebf10 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -10887,7 +10887,6 @@ symbolic_reference_mentioned_p (rtx op)
+ bool
+ ix86_can_use_return_insn_p (void)
+ {
+- struct ix86_frame frame;
+
+ if (! reload_completed || frame_pointer_needed)
+ return 0;
+@@ -10898,7 +10897,7 @@ ix86_can_use_return_insn_p (void)
+ return 0;
+
+ ix86_compute_frame_layout ();
+- frame = cfun->machine->frame;
++ struct ix86_frame &frame = cfun->machine->frame;
+ return (frame.stack_pointer_offset == UNITS_PER_WORD
+ && (frame.nregs + frame.nsseregs) == 0);
+ }
+@@ -11310,7 +11309,7 @@ HOST_WIDE_INT
+ ix86_initial_elimination_offset (int from, int to)
+ {
+ ix86_compute_frame_layout ();
+- struct ix86_frame frame = cfun->machine->frame;
++ struct ix86_frame &frame = cfun->machine->frame;
+
+ if (from == ARG_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM)
+ return frame.hard_frame_pointer_offset;
+@@ -13821,7 +13820,6 @@ static GTY(()) rtx split_stack_fn_large;
+ void
+ ix86_expand_split_stack_prologue (void)
+ {
+- struct ix86_frame frame;
+ HOST_WIDE_INT allocate;
+ unsigned HOST_WIDE_INT args_size;
+ rtx_code_label *label;
+@@ -13834,7 +13832,7 @@ ix86_expand_split_stack_prologue (void)
+
+ ix86_finalize_stack_realign_flags ();
+ ix86_compute_frame_layout ();
+- frame = cfun->machine->frame;
++ struct ix86_frame &frame = cfun->machine->frame;
+ allocate = frame.stack_pointer_offset - INCOMING_FRAME_SP_OFFSET;
+
+ /* This is the label we will branch to if we have enough stack
+--
+2.7.4
+
diff --git
a/meta/recipes-devtools/gcc/gcc-6.4/backport/0003-i386-Use-const-reference-of-struct-ix86_frame-to-avo.patch
b/meta/recipes-devtools/gcc/gcc-6.4/backport/0003-i386-Use-const-reference-of-struct-ix86_frame-to-avo.patch
new file mode 100644
index 0000000..a5ffd85
--- /dev/null
+++
b/meta/recipes-devtools/gcc/gcc-6.4/backport/0003-i386-Use-const-reference-of-struct-ix86_frame-to-avo.patch
@@ -0,0 +1,131 @@
+From 82243732dc63e9b90396a5ae4ad99ca36af81355 Mon Sep 17 00:00:00 2001
+From: hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Sat, 27 Jan 2018 13:10:24 +0000
+Subject: [PATCH 03/12] i386: Use const reference of struct ix86_frame to avoid
+ copy
+
+We can use const reference of struct ix86_frame to avoid making a local
+copy of ix86_frame. ix86_expand_epilogue makes a local copy of struct
+ix86_frame and uses the reg_save_offset field as a local variable. This
+patch uses a separate local variable for reg_save_offset.
+
+Tested on x86-64 with ada.
+
+ Backport from mainline
+ PR target/83905
+ * config/i386/i386.c (ix86_expand_prologue): Use cost reference
+ of struct ix86_frame.
+ (ix86_expand_epilogue): Likewise. Add a local variable for
+ the reg_save_offset field in struct ix86_frame.
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-7-branch@257123 138bc75d-0d04-0410-961f-82ee72b054a4
+
+Upstream-Status: Pending
+
+Signed-off-by: Juro Bystricky <juro bystricky intel com>
+
+---
+ gcc/config/i386/i386.c | 24 ++++++++++++------------
+ 1 file changed, 12 insertions(+), 12 deletions(-)
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 13ebf10..6c98f75 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -12633,7 +12633,6 @@ ix86_expand_prologue (void)
+ {
+ struct machine_function *m = cfun->machine;
+ rtx insn, t;
+- struct ix86_frame frame;
+ HOST_WIDE_INT allocate;
+ bool int_registers_saved;
+ bool sse_registers_saved;
+@@ -12657,7 +12656,7 @@ ix86_expand_prologue (void)
+ m->fs.sp_valid = true;
+
+ ix86_compute_frame_layout ();
+- frame = m->frame;
++ const struct ix86_frame &frame = cfun->machine->frame;
+
+ if (!TARGET_64BIT && ix86_function_ms_hook_prologue (current_function_decl))
+ {
+@@ -13329,13 +13328,12 @@ ix86_expand_epilogue (int style)
+ {
+ struct machine_function *m = cfun->machine;
+ struct machine_frame_state frame_state_save = m->fs;
+- struct ix86_frame frame;
+ bool restore_regs_via_mov;
+ bool using_drap;
+
+ ix86_finalize_stack_realign_flags ();
+ ix86_compute_frame_layout ();
+- frame = m->frame;
++ const struct ix86_frame &frame = cfun->machine->frame;
+
+ m->fs.sp_valid = (!frame_pointer_needed
+ || (crtl->sp_is_unchanging
+@@ -13377,11 +13375,13 @@ ix86_expand_epilogue (int style)
+ + UNITS_PER_WORD);
+ }
+
++ HOST_WIDE_INT reg_save_offset = frame.reg_save_offset;
++
+ /* Special care must be taken for the normal return case of a function
+ using eh_return: the eax and edx registers are marked as saved, but
+ not restored along this path. Adjust the save location to match. */
+ if (crtl->calls_eh_return && style != 2)
+- frame.reg_save_offset -= 2 * UNITS_PER_WORD;
++ reg_save_offset -= 2 * UNITS_PER_WORD;
+
+ /* EH_RETURN requires the use of moves to function properly. */
+ if (crtl->calls_eh_return)
+@@ -13397,11 +13397,11 @@ ix86_expand_epilogue (int style)
+ else if (TARGET_EPILOGUE_USING_MOVE
+ && cfun->machine->use_fast_prologue_epilogue
+ && (frame.nregs > 1
+- || m->fs.sp_offset != frame.reg_save_offset))
++ || m->fs.sp_offset != reg_save_offset))
+ restore_regs_via_mov = true;
+ else if (frame_pointer_needed
+ && !frame.nregs
+- && m->fs.sp_offset != frame.reg_save_offset)
++ && m->fs.sp_offset != reg_save_offset)
+ restore_regs_via_mov = true;
+ else if (frame_pointer_needed
+ && TARGET_USE_LEAVE
+@@ -13439,7 +13439,7 @@ ix86_expand_epilogue (int style)
+ rtx t;
+
+ if (frame.nregs)
+- ix86_emit_restore_regs_using_mov (frame.reg_save_offset, style == 2);
++ ix86_emit_restore_regs_using_mov (reg_save_offset, style == 2);
+
+ /* eh_return epilogues need %ecx added to the stack pointer. */
+ if (style == 2)
+@@ -13529,19 +13529,19 @@ ix86_expand_epilogue (int style)
+ epilogues. */
+ if (!m->fs.sp_valid
+ || (TARGET_SEH
+- && (m->fs.sp_offset - frame.reg_save_offset
++ && (m->fs.sp_offset - reg_save_offset
+ >= SEH_MAX_FRAME_SIZE)))
+ {
+ pro_epilogue_adjust_stack (stack_pointer_rtx, hard_frame_pointer_rtx,
+ GEN_INT (m->fs.fp_offset
+- - frame.reg_save_offset),
++ - reg_save_offset),
+ style, false);
+ }
+- else if (m->fs.sp_offset != frame.reg_save_offset)
++ else if (m->fs.sp_offset != reg_save_offset)
+ {
+ pro_epilogue_adjust_stack (stack_pointer_rtx, stack_pointer_rtx,
+ GEN_INT (m->fs.sp_offset
+- - frame.reg_save_offset),
++ - reg_save_offset),
+ style,
+ m->fs.cfa_reg == stack_pointer_rtx);
+ }
+--
+2.7.4
+
diff --git a/meta/recipes-devtools/gcc/gcc-6.4/backport/0004-x86-Add-mindirect-branch.patch
b/meta/recipes-devtools/gcc/gcc-6.4/backport/0004-x86-Add-mindirect-branch.patch
new file mode 100644
index 0000000..a9d6e5f
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-6.4/backport/0004-x86-Add-mindirect-branch.patch
@@ -0,0 +1,2154 @@
+From 6140c2c0bb2b61e69d0da84315e0433ff3520aaa Mon Sep 17 00:00:00 2001
+From: "H.J. Lu" <hjl tools gmail com>
+Date: Sat, 6 Jan 2018 22:29:55 -0800
+Subject: [PATCH 04/12] x86: Add -mindirect-branch=
+
+Add -mindirect-branch= option to convert indirect call and jump to call
+and return thunks. The default is 'keep', which keeps indirect call and
+jump unmodified. 'thunk' converts indirect call and jump to call and
+return thunk. 'thunk-inline' converts indirect call and jump to inlined
+call and return thunk. 'thunk-extern' converts indirect call and jump to
+external call and return thunk provided in a separate object file. You
+can control this behavior for a specific function by using the function
+attribute indirect_branch.
+
+2 kinds of thunks are geneated. Memory thunk where the function address
+is at the top of the stack:
+
+__x86_indirect_thunk:
+ call L2
+L1:
+ pause
+ lfence
+ jmp L1
+L2:
+ lea 8(%rsp), %rsp|lea 4(%esp), %esp
+ ret
+
+Indirect jmp via memory, "jmp mem", is converted to
+
+ push memory
+ jmp __x86_indirect_thunk
+
+Indirect call via memory, "call mem", is converted to
+
+ jmp L2
+L1:
+ push [mem]
+ jmp __x86_indirect_thunk
+L2:
+ call L1
+
+Register thunk where the function address is in a register, reg:
+
+__x86_indirect_thunk_reg:
+ call L2
+L1:
+ pause
+ lfence
+ jmp L1
+L2:
+ movq %reg, (%rsp)|movl %reg, (%esp)
+ ret
+
+where reg is one of (r|e)ax, (r|e)dx, (r|e)cx, (r|e)bx, (r|e)si, (r|e)di,
+(r|e)bp, r8, r9, r10, r11, r12, r13, r14 and r15.
+
+Indirect jmp via register, "jmp reg", is converted to
+
+ jmp __x86_indirect_thunk_reg
+
+Indirect call via register, "call reg", is converted to
+
+ call __x86_indirect_thunk_reg
+
+gcc/
+
+ Backport from mainline
+ 2018-01-14 H.J. Lu <hongjiu lu intel com>
+
+ * config/i386/i386-opts.h (indirect_branch): New.
+ * config/i386/i386-protos.h (ix86_output_indirect_jmp): Likewise.
+ * config/i386/i386.c (ix86_using_red_zone): Disallow red-zone
+ with local indirect jump when converting indirect call and jump.
+ (ix86_set_indirect_branch_type): New.
+ (ix86_set_current_function): Call ix86_set_indirect_branch_type.
+ (indirectlabelno): New.
+ (indirect_thunk_needed): Likewise.
+ (indirect_thunk_bnd_needed): Likewise.
+ (indirect_thunks_used): Likewise.
+ (indirect_thunks_bnd_used): Likewise.
+ (INDIRECT_LABEL): Likewise.
+ (indirect_thunk_name): Likewise.
+ (output_indirect_thunk): Likewise.
+ (output_indirect_thunk_function): Likewise.
+ (ix86_output_indirect_branch_via_reg): Likewise.
+ (ix86_output_indirect_branch_via_push): Likewise.
+ (ix86_output_indirect_branch): Likewise.
+ (ix86_output_indirect_jmp): Likewise.
+ (ix86_code_end): Call output_indirect_thunk_function if needed.
+ (ix86_output_call_insn): Call ix86_output_indirect_branch if
+ needed.
+ (ix86_handle_fndecl_attribute): Handle indirect_branch.
+ (ix86_attribute_table): Add indirect_branch.
+ * config/i386/i386.h (machine_function): Add indirect_branch_type
+ and has_local_indirect_jump.
+ * config/i386/i386.md (indirect_jump): Set has_local_indirect_jump
+ to true.
+ (tablejump): Likewise.
+ (*indirect_jump): Use ix86_output_indirect_jmp.
+ (*tablejump_1): Likewise.
+ (simple_return_indirect_internal): Likewise.
+ * config/i386/i386.opt (mindirect-branch=): New option.
+ (indirect_branch): New.
+ (keep): Likewise.
+ (thunk): Likewise.
+ (thunk-inline): Likewise.
+ (thunk-extern): Likewise.
+ * doc/extend.texi: Document indirect_branch function attribute.
+ * doc/invoke.texi: Document -mindirect-branch= option.
+
+gcc/testsuite/
+
+ Backport from mainline
+ 2018-01-14 H.J. Lu <hongjiu lu intel com>
+
+ * gcc.target/i386/indirect-thunk-1.c: New test.
+ * gcc.target/i386/indirect-thunk-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-5.c: Likewise.
+ * gcc.target/i386/indirect-thunk-6.c: Likewise.
+ * gcc.target/i386/indirect-thunk-7.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-1.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-5.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-6.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-7.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-8.c: Likewise.
+ * gcc.target/i386/indirect-thunk-bnd-1.c: Likewise.
+ * gcc.target/i386/indirect-thunk-bnd-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-bnd-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-bnd-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-1.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-5.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-6.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-1.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-5.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-6.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-7.c: Likewise.
+
+Upstream-Status: Pending
+
+Signed-off-by: Juro Bystricky <juro bystricky intel com>
+
+---
+ gcc/config/i386/i386-opts.h | 13 +
+ gcc/config/i386/i386-protos.h | 1 +
+ gcc/config/i386/i386.c | 639 ++++++++++++++++++++-
+ gcc/config/i386/i386.h | 7 +
+ gcc/config/i386/i386.md | 26 +-
+ gcc/config/i386/i386.opt | 20 +
+ gcc/doc/extend.texi | 10 +
+ gcc/doc/invoke.texi | 13 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-1.c | 20 +
+ gcc/testsuite/gcc.target/i386/indirect-thunk-2.c | 20 +
+ gcc/testsuite/gcc.target/i386/indirect-thunk-3.c | 21 +
+ gcc/testsuite/gcc.target/i386/indirect-thunk-4.c | 21 +
+ gcc/testsuite/gcc.target/i386/indirect-thunk-5.c | 17 +
+ gcc/testsuite/gcc.target/i386/indirect-thunk-6.c | 18 +
+ gcc/testsuite/gcc.target/i386/indirect-thunk-7.c | 44 ++
+ .../gcc.target/i386/indirect-thunk-attr-1.c | 23 +
+ .../gcc.target/i386/indirect-thunk-attr-2.c | 21 +
+ .../gcc.target/i386/indirect-thunk-attr-3.c | 23 +
+ .../gcc.target/i386/indirect-thunk-attr-4.c | 22 +
+ .../gcc.target/i386/indirect-thunk-attr-5.c | 22 +
+ .../gcc.target/i386/indirect-thunk-attr-6.c | 21 +
+ .../gcc.target/i386/indirect-thunk-attr-7.c | 44 ++
+ .../gcc.target/i386/indirect-thunk-attr-8.c | 42 ++
+ .../gcc.target/i386/indirect-thunk-bnd-1.c | 20 +
+ .../gcc.target/i386/indirect-thunk-bnd-2.c | 21 +
+ .../gcc.target/i386/indirect-thunk-bnd-3.c | 19 +
+ .../gcc.target/i386/indirect-thunk-bnd-4.c | 20 +
+ .../gcc.target/i386/indirect-thunk-extern-1.c | 19 +
+ .../gcc.target/i386/indirect-thunk-extern-2.c | 19 +
+ .../gcc.target/i386/indirect-thunk-extern-3.c | 20 +
+ .../gcc.target/i386/indirect-thunk-extern-4.c | 20 +
+ .../gcc.target/i386/indirect-thunk-extern-5.c | 16 +
+ .../gcc.target/i386/indirect-thunk-extern-6.c | 17 +
+ .../gcc.target/i386/indirect-thunk-extern-7.c | 43 ++
+ .../gcc.target/i386/indirect-thunk-inline-1.c | 20 +
+ .../gcc.target/i386/indirect-thunk-inline-2.c | 20 +
+ .../gcc.target/i386/indirect-thunk-inline-3.c | 21 +
+ .../gcc.target/i386/indirect-thunk-inline-4.c | 21 +
+ .../gcc.target/i386/indirect-thunk-inline-5.c | 17 +
+ .../gcc.target/i386/indirect-thunk-inline-6.c | 18 +
+ .../gcc.target/i386/indirect-thunk-inline-7.c | 44 ++
+ 41 files changed, 1486 insertions(+), 17 deletions(-)
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
+
+diff --git a/gcc/config/i386/i386-opts.h b/gcc/config/i386/i386-opts.h
+index b7f92e3..cc21152 100644
+--- a/gcc/config/i386/i386-opts.h
++++ b/gcc/config/i386/i386-opts.h
+@@ -99,4 +99,17 @@ enum stack_protector_guard {
+ SSP_GLOBAL /* global canary */
+ };
+
++/* This is used to mitigate variant #2 of the speculative execution
++ vulnerabilities on x86 processors identified by CVE-2017-5715, aka
++ Spectre. They convert indirect branches and function returns to
++ call and return thunks to avoid speculative execution via indirect
++ call, jmp and ret. */
++enum indirect_branch {
++ indirect_branch_unset = 0,
++ indirect_branch_keep,
++ indirect_branch_thunk,
++ indirect_branch_thunk_inline,
++ indirect_branch_thunk_extern
++};
++
+ #endif
+diff --git a/gcc/config/i386/i386-protos.h b/gcc/config/i386/i386-protos.h
+index ff47bc1..eca4cbf 100644
+--- a/gcc/config/i386/i386-protos.h
++++ b/gcc/config/i386/i386-protos.h
+@@ -311,6 +311,7 @@ extern enum attr_cpu ix86_schedule;
+ #endif
+
+ extern const char * ix86_output_call_insn (rtx_insn *insn, rtx call_op);
++extern const char * ix86_output_indirect_jmp (rtx call_op, bool ret_p);
+ extern bool ix86_operands_ok_for_move_multiple (rtx *operands, bool load,
+ enum machine_mode mode);
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 6c98f75..0b9fc4d 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -3662,12 +3662,23 @@ make_pass_stv (gcc::context *ctxt)
+ return new pass_stv (ctxt);
+ }
+
+-/* Return true if a red-zone is in use. */
++/* Return true if a red-zone is in use. We can't use red-zone when
++ there are local indirect jumps, like "indirect_jump" or "tablejump",
++ which jumps to another place in the function, since "call" in the
++ indirect thunk pushes the return address onto stack, destroying
++ red-zone.
++
++ TODO: If we can reserve the first 2 WORDs, for PUSH and, another
++ for CALL, in red-zone, we can allow local indirect jumps with
++ indirect thunk. */
+
+ bool
+ ix86_using_red_zone (void)
+ {
+- return TARGET_RED_ZONE && !TARGET_64BIT_MS_ABI;
++ return (TARGET_RED_ZONE
++ && !TARGET_64BIT_MS_ABI
++ && (!cfun->machine->has_local_indirect_jump
++ || cfun->machine->indirect_branch_type == indirect_branch_keep));
+ }
+
+ /* Return a string that documents the current -m options. The caller is
+@@ -6350,6 +6361,37 @@ ix86_reset_previous_fndecl (void)
+ ix86_previous_fndecl = NULL_TREE;
+ }
+
++/* Set the indirect_branch_type field from the function FNDECL. */
++
++static void
++ix86_set_indirect_branch_type (tree fndecl)
++{
++ if (cfun->machine->indirect_branch_type == indirect_branch_unset)
++ {
++ tree attr = lookup_attribute ("indirect_branch",
++ DECL_ATTRIBUTES (fndecl));
++ if (attr != NULL)
++ {
++ tree args = TREE_VALUE (attr);
++ if (args == NULL)
++ gcc_unreachable ();
++ tree cst = TREE_VALUE (args);
++ if (strcmp (TREE_STRING_POINTER (cst), "keep") == 0)
++ cfun->machine->indirect_branch_type = indirect_branch_keep;
++ else if (strcmp (TREE_STRING_POINTER (cst), "thunk") == 0)
++ cfun->machine->indirect_branch_type = indirect_branch_thunk;
++ else if (strcmp (TREE_STRING_POINTER (cst), "thunk-inline") == 0)
++ cfun->machine->indirect_branch_type = indirect_branch_thunk_inline;
++ else if (strcmp (TREE_STRING_POINTER (cst), "thunk-extern") == 0)
++ cfun->machine->indirect_branch_type = indirect_branch_thunk_extern;
++ else
++ gcc_unreachable ();
++ }
++ else
++ cfun->machine->indirect_branch_type = ix86_indirect_branch;
++ }
++}
++
+ /* Establish appropriate back-end context for processing the function
+ FNDECL. The argument might be NULL to indicate processing at top
+ level, outside of any function scope. */
+@@ -6360,7 +6402,13 @@ ix86_set_current_function (tree fndecl)
+ several times in the course of compiling a function, and we don't want to
+ slow things down too much or call target_reinit when it isn't safe. */
+ if (fndecl == ix86_previous_fndecl)
+- return;
++ {
++ /* There may be 2 function bodies for the same function FNDECL,
++ one is extern inline and one isn't. */
++ if (fndecl != NULL_TREE)
++ ix86_set_indirect_branch_type (fndecl);
++ return;
++ }
+
+ tree old_tree;
+ if (ix86_previous_fndecl == NULL_TREE)
+@@ -6377,6 +6425,8 @@ ix86_set_current_function (tree fndecl)
+ return;
+ }
+
++ ix86_set_indirect_branch_type (fndecl);
++
+ tree new_tree = DECL_FUNCTION_SPECIFIC_TARGET (fndecl);
+ if (new_tree == NULL_TREE)
+ new_tree = target_option_default_node;
+@@ -10962,6 +11012,220 @@ ix86_setup_frame_addresses (void)
+ # endif
+ #endif
+
++/* Label count for call and return thunks. It is used to make unique
++ labels in call and return thunks. */
++static int indirectlabelno;
++
++/* True if call and return thunk functions are needed. */
++static bool indirect_thunk_needed = false;
++/* True if call and return thunk functions with the BND prefix are
++ needed. */
++static bool indirect_thunk_bnd_needed = false;
++
++/* Bit masks of integer registers, which contain branch target, used
++ by call and return thunks functions. */
++static int indirect_thunks_used;
++/* Bit masks of integer registers, which contain branch target, used
++ by call and return thunks functions with the BND prefix. */
++static int indirect_thunks_bnd_used;
++
++#ifndef INDIRECT_LABEL
++# define INDIRECT_LABEL "LIND"
++#endif
++
++/* Fills in the label name that should be used for the indirect thunk. */
++
++static void
++indirect_thunk_name (char name[32], int regno, bool need_bnd_p)
++{
++ if (USE_HIDDEN_LINKONCE)
++ {
++ const char *bnd = need_bnd_p ? "_bnd" : "";
++ if (regno >= 0)
++ {
++ const char *reg_prefix;
++ if (LEGACY_INT_REGNO_P (regno))
++ reg_prefix = TARGET_64BIT ? "r" : "e";
++ else
++ reg_prefix = "";
++ sprintf (name, "__x86_indirect_thunk%s_%s%s",
++ bnd, reg_prefix, reg_names[regno]);
++ }
++ else
++ sprintf (name, "__x86_indirect_thunk%s", bnd);
++ }
++ else
++ {
++ if (regno >= 0)
++ {
++ if (need_bnd_p)
++ ASM_GENERATE_INTERNAL_LABEL (name, "LITBR", regno);
++ else
++ ASM_GENERATE_INTERNAL_LABEL (name, "LITR", regno);
++ }
++ else
++ {
++ if (need_bnd_p)
++ ASM_GENERATE_INTERNAL_LABEL (name, "LITB", 0);
++ else
++ ASM_GENERATE_INTERNAL_LABEL (name, "LIT", 0);
++ }
++ }
++}
++
++/* Output a call and return thunk for indirect branch. If BND_P is
++ true, the BND prefix is needed. If REGNO != -1, the function
++ address is in REGNO and the call and return thunk looks like:
++
++ call L2
++ L1:
++ pause
++ jmp L1
++ L2:
++ mov %REG, (%sp)
++ ret
++
++ Otherwise, the function address is on the top of stack and the
++ call and return thunk looks like:
++
++ call L2
++ L1:
++ pause
++ jmp L1
++ L2:
++ lea WORD_SIZE(%sp), %sp
++ ret
++ */
++
++static void
++output_indirect_thunk (bool need_bnd_p, int regno)
++{
++ char indirectlabel1[32];
++ char indirectlabel2[32];
++
++ ASM_GENERATE_INTERNAL_LABEL (indirectlabel1, INDIRECT_LABEL,
++ indirectlabelno++);
++ ASM_GENERATE_INTERNAL_LABEL (indirectlabel2, INDIRECT_LABEL,
++ indirectlabelno++);
++
++ /* Call */
++ if (need_bnd_p)
++ fputs ("\tbnd call\t", asm_out_file);
++ else
++ fputs ("\tcall\t", asm_out_file);
++ assemble_name_raw (asm_out_file, indirectlabel2);
++ fputc ('\n', asm_out_file);
++
++ ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel1);
++
++ /* Pause + lfence. */
++ fprintf (asm_out_file, "\tpause\n\tlfence\n");
++
++ /* Jump. */
++ fputs ("\tjmp\t", asm_out_file);
++ assemble_name_raw (asm_out_file, indirectlabel1);
++ fputc ('\n', asm_out_file);
++
++ ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel2);
++
++ if (regno >= 0)
++ {
++ /* MOV. */
++ rtx xops[2];
++ xops[0] = gen_rtx_MEM (word_mode, stack_pointer_rtx);
++ xops[1] = gen_rtx_REG (word_mode, regno);
++ output_asm_insn ("mov\t{%1, %0|%0, %1}", xops);
++ }
++ else
++ {
++ /* LEA. */
++ rtx xops[2];
++ xops[0] = stack_pointer_rtx;
++ xops[1] = plus_constant (Pmode, stack_pointer_rtx, UNITS_PER_WORD);
++ output_asm_insn ("lea\t{%E1, %0|%0, %E1}", xops);
++ }
++
++ if (need_bnd_p)
++ fputs ("\tbnd ret\n", asm_out_file);
++ else
++ fputs ("\tret\n", asm_out_file);
++}
++
++/* Output a funtion with a call and return thunk for indirect branch.
++ If BND_P is true, the BND prefix is needed. If REGNO != -1, the
++ function address is in REGNO. Otherwise, the function address is
++ on the top of stack. */
++
++static void
++output_indirect_thunk_function (bool need_bnd_p, int regno)
++{
++ char name[32];
++ tree decl;
++
++ /* Create __x86_indirect_thunk/__x86_indirect_thunk_bnd. */
++ indirect_thunk_name (name, regno, need_bnd_p);
++ decl = build_decl (BUILTINS_LOCATION, FUNCTION_DECL,
++ get_identifier (name),
++ build_function_type_list (void_type_node, NULL_TREE));
++ DECL_RESULT (decl) = build_decl (BUILTINS_LOCATION, RESULT_DECL,
++ NULL_TREE, void_type_node);
++ TREE_PUBLIC (decl) = 1;
++ TREE_STATIC (decl) = 1;
++ DECL_IGNORED_P (decl) = 1;
++
++#if TARGET_MACHO
++ if (TARGET_MACHO)
++ {
++ switch_to_section (darwin_sections[picbase_thunk_section]);
++ fputs ("\t.weak_definition\t", asm_out_file);
++ assemble_name (asm_out_file, name);
++ fputs ("\n\t.private_extern\t", asm_out_file);
++ assemble_name (asm_out_file, name);
++ putc ('\n', asm_out_file);
++ ASM_OUTPUT_LABEL (asm_out_file, name);
++ DECL_WEAK (decl) = 1;
++ }
++ else
++#endif
++ if (USE_HIDDEN_LINKONCE)
++ {
++ cgraph_node::create (decl)->set_comdat_group (DECL_ASSEMBLER_NAME (decl));
++
++ targetm.asm_out.unique_section (decl, 0);
++ switch_to_section (get_named_section (decl, NULL, 0));
++
++ targetm.asm_out.globalize_label (asm_out_file, name);
++ fputs ("\t.hidden\t", asm_out_file);
++ assemble_name (asm_out_file, name);
++ putc ('\n', asm_out_file);
++ ASM_DECLARE_FUNCTION_NAME (asm_out_file, name, decl);
++ }
++ else
++ {
++ switch_to_section (text_section);
++ ASM_OUTPUT_LABEL (asm_out_file, name);
++ }
++
++ DECL_INITIAL (decl) = make_node (BLOCK);
++ current_function_decl = decl;
++ allocate_struct_function (decl, false);
++ init_function_start (decl);
++ /* We're about to hide the function body from callees of final_* by
++ emitting it directly; tell them we're a thunk, if they care. */
++ cfun->is_thunk = true;
++ first_function_block_is_cold = false;
++ /* Make sure unwind info is emitted for the thunk if needed. */
++ final_start_function (emit_barrier (), asm_out_file, 1);
++
++ output_indirect_thunk (need_bnd_p, regno);
++
++ final_end_function ();
++ init_insn_lengths ();
++ free_after_compilation (cfun);
++ set_cfun (NULL);
++ current_function_decl = NULL;
++}
++
+ static int pic_labels_used;
+
+ /* Fills in the label name that should be used for a pc thunk for
+@@ -10988,11 +11252,32 @@ ix86_code_end (void)
+ rtx xops[2];
+ int regno;
+
++ if (indirect_thunk_needed)
++ output_indirect_thunk_function (false, -1);
++ if (indirect_thunk_bnd_needed)
++ output_indirect_thunk_function (true, -1);
++
++ for (regno = FIRST_REX_INT_REG; regno <= LAST_REX_INT_REG; regno++)
++ {
++ int i = regno - FIRST_REX_INT_REG + LAST_INT_REG + 1;
++ if ((indirect_thunks_used & (1 << i)))
++ output_indirect_thunk_function (false, regno);
++
++ if ((indirect_thunks_bnd_used & (1 << i)))
++ output_indirect_thunk_function (true, regno);
++ }
++
+ for (regno = AX_REG; regno <= SP_REG; regno++)
+ {
+ char name[32];
+ tree decl;
+
++ if ((indirect_thunks_used & (1 << regno)))
++ output_indirect_thunk_function (false, regno);
++
++ if ((indirect_thunks_bnd_used & (1 << regno)))
++ output_indirect_thunk_function (true, regno);
++
+ if (!(pic_labels_used & (1 << regno)))
+ continue;
+
+@@ -27369,12 +27654,292 @@ ix86_nopic_noplt_attribute_p (rtx call_op)
+ return false;
+ }
+
++/* Output indirect branch via a call and return thunk. CALL_OP is a
++ register which contains the branch target. XASM is the assembly
++ template for CALL_OP. Branch is a tail call if SIBCALL_P is true.
++ A normal call is converted to:
++
++ call __x86_indirect_thunk_reg
++
++ and a tail call is converted to:
++
++ jmp __x86_indirect_thunk_reg
++ */
++
++static void
++ix86_output_indirect_branch_via_reg (rtx call_op, bool sibcall_p)
++{
++ char thunk_name_buf[32];
++ char *thunk_name;
++ bool need_bnd_p = ix86_bnd_prefixed_insn_p (current_output_insn);
++ int regno = REGNO (call_op);
++
++ if (cfun->machine->indirect_branch_type
++ != indirect_branch_thunk_inline)
++ {
++ if (cfun->machine->indirect_branch_type == indirect_branch_thunk)
++ {
++ int i = regno;
++ if (i >= FIRST_REX_INT_REG)
++ i -= (FIRST_REX_INT_REG - LAST_INT_REG - 1);
++ if (need_bnd_p)
++ indirect_thunks_bnd_used |= 1 << i;
++ else
++ indirect_thunks_used |= 1 << i;
++ }
++ indirect_thunk_name (thunk_name_buf, regno, need_bnd_p);
++ thunk_name = thunk_name_buf;
++ }
++ else
++ thunk_name = NULL;
++
++ if (sibcall_p)
++ {
++ if (thunk_name != NULL)
++ {
++ if (need_bnd_p)
++ fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name);
++ else
++ fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
++ }
++ else
++ output_indirect_thunk (need_bnd_p, regno);
++ }
++ else
++ {
++ if (thunk_name != NULL)
++ {
++ if (need_bnd_p)
++ fprintf (asm_out_file, "\tbnd call\t%s\n", thunk_name);
++ else
++ fprintf (asm_out_file, "\tcall\t%s\n", thunk_name);
++ return;
++ }
++
++ char indirectlabel1[32];
++ char indirectlabel2[32];
++
++ ASM_GENERATE_INTERNAL_LABEL (indirectlabel1,
++ INDIRECT_LABEL,
++ indirectlabelno++);
++ ASM_GENERATE_INTERNAL_LABEL (indirectlabel2,
++ INDIRECT_LABEL,
++ indirectlabelno++);
++
++ /* Jump. */
++ if (need_bnd_p)
++ fputs ("\tbnd jmp\t", asm_out_file);
++ else
++ fputs ("\tjmp\t", asm_out_file);
++ assemble_name_raw (asm_out_file, indirectlabel2);
++ fputc ('\n', asm_out_file);
++
++ ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel1);
++
++ if (thunk_name != NULL)
++ {
++ if (need_bnd_p)
++ fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name);
++ else
++ fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
++ }
++ else
++ output_indirect_thunk (need_bnd_p, regno);
++
++ ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel2);
++
++ /* Call. */
++ if (need_bnd_p)
++ fputs ("\tbnd call\t", asm_out_file);
++ else
++ fputs ("\tcall\t", asm_out_file);
++ assemble_name_raw (asm_out_file, indirectlabel1);
++ fputc ('\n', asm_out_file);
++ }
++}
++
++/* Output indirect branch via a call and return thunk. CALL_OP is
++ the branch target. XASM is the assembly template for CALL_OP.
++ Branch is a tail call if SIBCALL_P is true. A normal call is
++ converted to:
++
++ jmp L2
++ L1:
++ push CALL_OP
++ jmp __x86_indirect_thunk
++ L2:
++ call L1
++
++ and a tail call is converted to:
++
++ push CALL_OP
++ jmp __x86_indirect_thunk
++ */
++
++static void
++ix86_output_indirect_branch_via_push (rtx call_op, const char *xasm,
++ bool sibcall_p)
++{
++ char thunk_name_buf[32];
++ char *thunk_name;
++ char push_buf[64];
++ bool need_bnd_p = ix86_bnd_prefixed_insn_p (current_output_insn);
++ int regno = -1;
++
++ if (cfun->machine->indirect_branch_type
++ != indirect_branch_thunk_inline)
++ {
++ if (cfun->machine->indirect_branch_type == indirect_branch_thunk)
++ {
++ if (need_bnd_p)
++ indirect_thunk_bnd_needed = true;
++ else
++ indirect_thunk_needed = true;
++ }
++ indirect_thunk_name (thunk_name_buf, regno, need_bnd_p);
++ thunk_name = thunk_name_buf;
++ }
++ else
++ thunk_name = NULL;
++
++ snprintf (push_buf, sizeof (push_buf), "push{%c}\t%s",
++ TARGET_64BIT ? 'q' : 'l', xasm);
++
++ if (sibcall_p)
++ {
++ output_asm_insn (push_buf, &call_op);
++ if (thunk_name != NULL)
++ {
++ if (need_bnd_p)
++ fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name);
++ else
++ fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
++ }
++ else
++ output_indirect_thunk (need_bnd_p, regno);
++ }
++ else
++ {
++ char indirectlabel1[32];
++ char indirectlabel2[32];
++
++ ASM_GENERATE_INTERNAL_LABEL (indirectlabel1,
++ INDIRECT_LABEL,
++ indirectlabelno++);
++ ASM_GENERATE_INTERNAL_LABEL (indirectlabel2,
++ INDIRECT_LABEL,
++ indirectlabelno++);
++
++ /* Jump. */
++ if (need_bnd_p)
++ fputs ("\tbnd jmp\t", asm_out_file);
++ else
++ fputs ("\tjmp\t", asm_out_file);
++ assemble_name_raw (asm_out_file, indirectlabel2);
++ fputc ('\n', asm_out_file);
++
++ ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel1);
++
++ /* An external function may be called via GOT, instead of PLT. */
++ if (MEM_P (call_op))
++ {
++ struct ix86_address parts;
++ rtx addr = XEXP (call_op, 0);
++ if (ix86_decompose_address (addr, &parts)
++ && parts.base == stack_pointer_rtx)
++ {
++ /* Since call will adjust stack by -UNITS_PER_WORD,
++ we must convert "disp(stack, index, scale)" to
++ "disp+UNITS_PER_WORD(stack, index, scale)". */
++ if (parts.index)
++ {
++ addr = gen_rtx_MULT (Pmode, parts.index,
++ GEN_INT (parts.scale));
++ addr = gen_rtx_PLUS (Pmode, stack_pointer_rtx,
++ addr);
++ }
++ else
++ addr = stack_pointer_rtx;
++
++ rtx disp;
++ if (parts.disp != NULL_RTX)
++ disp = plus_constant (Pmode, parts.disp,
++ UNITS_PER_WORD);
++ else
++ disp = GEN_INT (UNITS_PER_WORD);
++
++ addr = gen_rtx_PLUS (Pmode, addr, disp);
++ call_op = gen_rtx_MEM (GET_MODE (call_op), addr);
++ }
++ }
++
++ output_asm_insn (push_buf, &call_op);
++
++ if (thunk_name != NULL)
++ {
++ if (need_bnd_p)
++ fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name);
++ else
++ fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
++ }
++ else
++ output_indirect_thunk (need_bnd_p, regno);
++
++ ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel2);
++
++ /* Call. */
++ if (need_bnd_p)
++ fputs ("\tbnd call\t", asm_out_file);
++ else
++ fputs ("\tcall\t", asm_out_file);
++ assemble_name_raw (asm_out_file, indirectlabel1);
++ fputc ('\n', asm_out_file);
++ }
++}
++
++/* Output indirect branch via a call and return thunk. CALL_OP is
++ the branch target. XASM is the assembly template for CALL_OP.
++ Branch is a tail call if SIBCALL_P is true. */
++
++static void
++ix86_output_indirect_branch (rtx call_op, const char *xasm,
++ bool sibcall_p)
++{
++ if (REG_P (call_op))
++ ix86_output_indirect_branch_via_reg (call_op, sibcall_p);
++ else
++ ix86_output_indirect_branch_via_push (call_op, xasm, sibcall_p);
++}
++/* Output indirect jump. CALL_OP is the jump target. Jump is a
++ function return if RET_P is true. */
++
++const char *
++ix86_output_indirect_jmp (rtx call_op, bool ret_p)
++{
++ if (cfun->machine->indirect_branch_type != indirect_branch_keep)
++ {
++ /* We can't have red-zone if this isn't a function return since
++ "call" in the indirect thunk pushes the return address onto
++ stack, destroying red-zone. */
++ if (!ret_p && ix86_red_zone_size != 0)
++ gcc_unreachable ();
++
++ ix86_output_indirect_branch (call_op, "%0", true);
++ return "";
++ }
++ else
++ return "%!jmp\t%A0";
++}
++
+ /* Output the assembly for a call instruction. */
+
+ const char *
+ ix86_output_call_insn (rtx_insn *insn, rtx call_op)
+ {
+ bool direct_p = constant_call_address_operand (call_op, VOIDmode);
++ bool output_indirect_p
++ = (!TARGET_SEH
++ && cfun->machine->indirect_branch_type != indirect_branch_keep);
+ bool seh_nop_p = false;
+ const char *xasm;
+
+@@ -27383,7 +27948,13 @@ ix86_output_call_insn (rtx_insn *insn, rtx call_op)
+ if (direct_p)
+ {
+ if (ix86_nopic_noplt_attribute_p (call_op))
+- xasm = "%!jmp\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}";
++ {
++ direct_p = false;
++ if (output_indirect_p)
++ xasm = "{%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}";
++ else
++ xasm = "%!jmp\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}";
++ }
+ else
+ xasm = "%!jmp\t%P0";
+ }
+@@ -27392,9 +27963,17 @@ ix86_output_call_insn (rtx_insn *insn, rtx call_op)
+ else if (TARGET_SEH)
+ xasm = "%!rex.W jmp\t%A0";
+ else
+- xasm = "%!jmp\t%A0";
++ {
++ if (output_indirect_p)
++ xasm = "%0";
++ else
++ xasm = "%!jmp\t%A0";
++ }
+
+- output_asm_insn (xasm, &call_op);
++ if (output_indirect_p && !direct_p)
++ ix86_output_indirect_branch (call_op, xasm, true);
++ else
++ output_asm_insn (xasm, &call_op);
+ return "";
+ }
+
+@@ -27431,14 +28010,28 @@ ix86_output_call_insn (rtx_insn *insn, rtx call_op)
+ if (direct_p)
+ {
+ if (ix86_nopic_noplt_attribute_p (call_op))
+- xasm = "%!call\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}";
++ {
++ direct_p = false;
++ if (output_indirect_p)
++ xasm = "{%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}";
++ else
++ xasm = "%!call\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}";
++ }
+ else
+ xasm = "%!call\t%P0";
+ }
+ else
+- xasm = "%!call\t%A0";
++ {
++ if (output_indirect_p)
++ xasm = "%0";
++ else
++ xasm = "%!call\t%A0";
++ }
+
+- output_asm_insn (xasm, &call_op);
++ if (output_indirect_p && !direct_p)
++ ix86_output_indirect_branch (call_op, xasm, false);
++ else
++ output_asm_insn (xasm, &call_op);
+
+ if (seh_nop_p)
+ return "nop";
+@@ -44836,7 +45429,7 @@ ix86_handle_struct_attribute (tree *node, tree name, tree, int,
+ }
+
+ static tree
+-ix86_handle_fndecl_attribute (tree *node, tree name, tree, int,
++ix86_handle_fndecl_attribute (tree *node, tree name, tree args, int,
+ bool *no_add_attrs)
+ {
+ if (TREE_CODE (*node) != FUNCTION_DECL)
+@@ -44845,6 +45438,29 @@ ix86_handle_fndecl_attribute (tree *node, tree name, tree, int,
+ name);
+ *no_add_attrs = true;
+ }
++
++ if (is_attribute_p ("indirect_branch", name))
++ {
++ tree cst = TREE_VALUE (args);
++ if (TREE_CODE (cst) != STRING_CST)
++ {
++ warning (OPT_Wattributes,
++ "%qE attribute requires a string constant argument",
++ name);
++ *no_add_attrs = true;
++ }
++ else if (strcmp (TREE_STRING_POINTER (cst), "keep") != 0
++ && strcmp (TREE_STRING_POINTER (cst), "thunk") != 0
++ && strcmp (TREE_STRING_POINTER (cst), "thunk-inline") != 0
++ && strcmp (TREE_STRING_POINTER (cst), "thunk-extern") != 0)
++ {
++ warning (OPT_Wattributes,
++ "argument to %qE attribute is not "
++ "(keep|thunk|thunk-inline|thunk-extern)", name);
++ *no_add_attrs = true;
++ }
++ }
++
+ return NULL_TREE;
+ }
+
+@@ -49072,6 +49688,9 @@ static const struct attribute_spec ix86_attribute_table[] =
+ false },
+ { "callee_pop_aggregate_return", 1, 1, false, true, true,
+ ix86_handle_callee_pop_aggregate_return, true },
++ { "indirect_branch", 1, 1, true, false, false,
++ ix86_handle_fndecl_attribute, false },
++
+ /* End element. */
+ { NULL, 0, 0, false, false, false, NULL, false }
+ };
+diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
+index 5414416..9dccdb0 100644
+--- a/gcc/config/i386/i386.h
++++ b/gcc/config/i386/i386.h
+@@ -2572,6 +2572,13 @@ struct GTY(()) machine_function {
+ /* If true, it is safe to not save/restore DRAP register. */
+ BOOL_BITFIELD no_drap_save_restore : 1;
+
++ /* How to generate indirec branch. */
++ ENUM_BITFIELD(indirect_branch) indirect_branch_type : 3;
++
++ /* If true, the current function has local indirect jumps, like
++ "indirect_jump" or "tablejump". */
++ BOOL_BITFIELD has_local_indirect_jump : 1;
++
+ /* If true, there is register available for argument passing. This
+ is used only in ix86_function_ok_for_sibcall by 32-bit to determine
+ if there is scratch register available for indirect sibcall. In
+diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
+index d2bfe31..153e162 100644
+--- a/gcc/config/i386/i386.md
++++ b/gcc/config/i386/i386.md
+@@ -11807,13 +11807,18 @@
+ {
+ if (TARGET_X32)
+ operands[0] = convert_memory_address (word_mode, operands[0]);
++ cfun->machine->has_local_indirect_jump = true;
+ })
+
+ (define_insn "*indirect_jump"
+ [(set (pc) (match_operand:W 0 "indirect_branch_operand" "rBw"))]
+ ""
+- "%!jmp\t%A0"
+- [(set_attr "type" "ibr")
++ "* return ix86_output_indirect_jmp (operands[0], false);"
++ [(set (attr "type")
++ (if_then_else (match_test "(cfun->machine->indirect_branch_type
++ != indirect_branch_keep)")
++ (const_string "multi")
++ (const_string "ibr")))
+ (set_attr "length_immediate" "0")
+ (set_attr "maybe_prefix_bnd" "1")])
+
+@@ -11856,14 +11861,19 @@
+
+ if (TARGET_X32)
+ operands[0] = convert_memory_address (word_mode, operands[0]);
++ cfun->machine->has_local_indirect_jump = true;
+ })
+
+ (define_insn "*tablejump_1"
+ [(set (pc) (match_operand:W 0 "indirect_branch_operand" "rBw"))
+ (use (label_ref (match_operand 1)))]
+ ""
+- "%!jmp\t%A0"
+- [(set_attr "type" "ibr")
++ "* return ix86_output_indirect_jmp (operands[0], false);"
++ [(set (attr "type")
++ (if_then_else (match_test "(cfun->machine->indirect_branch_type
++ != indirect_branch_keep)")
++ (const_string "multi")
++ (const_string "ibr")))
+ (set_attr "length_immediate" "0")
+ (set_attr "maybe_prefix_bnd" "1")])
+
+@@ -12520,8 +12530,12 @@
+ [(simple_return)
+ (use (match_operand:SI 0 "register_operand" "r"))]
+ "reload_completed"
+- "%!jmp\t%A0"
+- [(set_attr "type" "ibr")
++ "* return ix86_output_indirect_jmp (operands[0], true);"
++ [(set (attr "type")
++ (if_then_else (match_test "(cfun->machine->indirect_branch_type
++ != indirect_branch_keep)")
++ (const_string "multi")
++ (const_string "ibr")))
+ (set_attr "length_immediate" "0")
+ (set_attr "maybe_prefix_bnd" "1")])
+
+diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt
+index f304b62..5ffa334 100644
+--- a/gcc/config/i386/i386.opt
++++ b/gcc/config/i386/i386.opt
+@@ -897,3 +897,23 @@ Enum(stack_protector_guard) String(global) Value(SSP_GLOBAL)
+ mmitigate-rop
+ Target Var(flag_mitigate_rop) Init(0)
+ Attempt to avoid generating instruction sequences containing ret bytes.
++
++mindirect-branch=
++Target Report RejectNegative Joined Enum(indirect_branch) Var(ix86_indirect_branch)
Init(indirect_branch_keep)
++Convert indirect call and jump to call and return thunks.
++
++Enum
++Name(indirect_branch) Type(enum indirect_branch)
++Known indirect branch choices (for use with the -mindirect-branch= option):
++
++EnumValue
++Enum(indirect_branch) String(keep) Value(indirect_branch_keep)
++
++EnumValue
++Enum(indirect_branch) String(thunk) Value(indirect_branch_thunk)
++
++EnumValue
++Enum(indirect_branch) String(thunk-inline) Value(indirect_branch_thunk_inline)
++
++EnumValue
++Enum(indirect_branch) String(thunk-extern) Value(indirect_branch_thunk_extern)
+diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
+index 8cc4f7e..8668dae 100644
+--- a/gcc/doc/extend.texi
++++ b/gcc/doc/extend.texi
+@@ -5419,6 +5419,16 @@ Specify which floating-point unit to use. You must specify the
+ @code{target("fpmath=sse,387")} option as
+ @code{target("fpmath=sse+387")} because the comma would separate
+ different options.
++
++@item indirect_branch("@var{choice}")
++@cindex @code{indirect_branch} function attribute, x86
++On x86 targets, the @code{indirect_branch} attribute causes the compiler
++to convert indirect call and jump with @var{choice}. @samp{keep}
++keeps indirect call and jump unmodified. @samp{thunk} converts indirect
++call and jump to call and return thunk. @samp{thunk-inline} converts
++indirect call and jump to inlined call and return thunk.
++@samp{thunk-extern} converts indirect call and jump to external call
++and return thunk provided in a separate object file.
+ @end table
+
+ On the x86, the inliner does not inline a
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index b066f7b..ff9a194 100644
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -1169,7 +1169,7 @@ See RS/6000 and PowerPC Options.
+ -msse2avx -mfentry -mrecord-mcount -mnop-mcount -m8bit-idiv @gol
+ -mavx256-split-unaligned-load -mavx256-split-unaligned-store @gol
+ -malign-data=@var{type} -mstack-protector-guard=@var{guard} @gol
+--mmitigate-rop}
++-mmitigate-rop -mindirect-branch=@var{choice}}
+
+ @emph{x86 Windows Options}
+ @gccoptlist{-mconsole -mcygwin -mno-cygwin -mdll @gol
+@@ -24218,6 +24218,17 @@ opcodes, to mitigate against certain forms of attack. At the moment,
+ this option is limited in what it can do and should not be relied
+ on to provide serious protection.
+
++@item -mindirect-branch=@var{choice}
++@opindex -mindirect-branch
++Convert indirect call and jump with @var{choice}. The default is
++@samp{keep}, which keeps indirect call and jump unmodified.
++@samp{thunk} converts indirect call and jump to call and return thunk.
++@samp{thunk-inline} converts indirect call and jump to inlined call
++and return thunk. @samp{thunk-extern} converts indirect call and jump
++to external call and return thunk provided in a separate object file.
++You can control this behavior for a specific function by using the
++function attribute @code{indirect_branch}. @xref{Function Attributes}.
++
+ @end table
+
+ These @samp{-m} switches are supported in addition to the above
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
+new file mode 100644
+index 0000000..d983e1c
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
+@@ -0,0 +1,20 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++void
++male_indirect_jump (long offset)
++{
++ dispatch(offset);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
+new file mode 100644
+index 0000000..58f09b4
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
+@@ -0,0 +1,20 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch[256];
++
++void
++male_indirect_jump (long offset)
++{
++ dispatch[offset](offset);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
+new file mode 100644
+index 0000000..f20d35c
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
+@@ -0,0 +1,21 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++int
++male_indirect_jump (long offset)
++{
++ dispatch(offset);
++ return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
+new file mode 100644
+index 0000000..0eff8fb
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
+@@ -0,0 +1,21 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch[256];
++
++int
++male_indirect_jump (long offset)
++{
++ dispatch[offset](offset);
++ return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
+new file mode 100644
+index 0000000..a25b20d
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
+@@ -0,0 +1,17 @@
++/* { dg-do compile { target *-*-linux* } } */
++/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk" } */
++
++extern void bar (void);
++
++void
++foo (void)
++{
++ bar ();
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
+new file mode 100644
+index 0000000..cff114a
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
+@@ -0,0 +1,18 @@
++/* { dg-do compile { target *-*-linux* } } */
++/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk" } */
++
++extern void bar (void);
++
++int
++foo (void)
++{
++ bar ();
++ return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
+new file mode 100644
+index 0000000..afdb600
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
+@@ -0,0 +1,44 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++
++void func0 (void);
++void func1 (void);
++void func2 (void);
++void func3 (void);
++void func4 (void);
++void func4 (void);
++void func5 (void);
++
++void
++bar (int i)
++{
++ switch (i)
++ {
++ default:
++ func0 ();
++ break;
++ case 1:
++ func1 ();
++ break;
++ case 2:
++ func2 ();
++ break;
++ case 3:
++ func3 ();
++ break;
++ case 4:
++ func4 ();
++ break;
++ case 5:
++ func5 ();
++ break;
++ }
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
+new file mode 100644
+index 0000000..d64d978
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
+@@ -0,0 +1,23 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++extern void male_indirect_jump (long)
++ __attribute__ ((indirect_branch("thunk")));
++
++void
++male_indirect_jump (long offset)
++{
++ dispatch(offset);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
+new file mode 100644
+index 0000000..9306745
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
+@@ -0,0 +1,21 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch[256];
++
++__attribute__ ((indirect_branch("thunk")))
++void
++male_indirect_jump (long offset)
++{
++ dispatch[offset](offset);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
+new file mode 100644
+index 0000000..97744d6
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
+@@ -0,0 +1,23 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++extern int male_indirect_jump (long)
++ __attribute__ ((indirect_branch("thunk-inline")));
++
++int
++male_indirect_jump (long offset)
++{
++ dispatch(offset);
++ return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
+new file mode 100644
+index 0000000..bfce3ea
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
+@@ -0,0 +1,22 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch[256];
++
++__attribute__ ((indirect_branch("thunk-inline")))
++int
++male_indirect_jump (long offset)
++{
++ dispatch[offset](offset);
++ return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
+new file mode 100644
+index 0000000..0833606
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
+@@ -0,0 +1,22 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++extern int male_indirect_jump (long)
++ __attribute__ ((indirect_branch("thunk-extern")));
++
++int
++male_indirect_jump (long offset)
++{
++ dispatch(offset);
++ return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
+new file mode 100644
+index 0000000..2eba0fb
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
+@@ -0,0 +1,21 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch[256];
++
++__attribute__ ((indirect_branch("thunk-extern")))
++int
++male_indirect_jump (long offset)
++{
++ dispatch[offset](offset);
++ return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
+new file mode 100644
+index 0000000..f58427e
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
+@@ -0,0 +1,44 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -fno-pic" } */
++
++void func0 (void);
++void func1 (void);
++void func2 (void);
++void func3 (void);
++void func4 (void);
++void func4 (void);
++void func5 (void);
++
++__attribute__ ((indirect_branch("thunk-extern")))
++void
++bar (int i)
++{
++ switch (i)
++ {
++ default:
++ func0 ();
++ break;
++ case 1:
++ func1 ();
++ break;
++ case 2:
++ func2 ();
++ break;
++ case 3:
++ func3 ();
++ break;
++ case 4:
++ func4 ();
++ break;
++ case 5:
++ func5 ();
++ break;
++ }
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c
+new file mode 100644
+index 0000000..564ed39
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c
+@@ -0,0 +1,42 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++
++void func0 (void);
++void func1 (void);
++void func2 (void);
++void func3 (void);
++void func4 (void);
++void func4 (void);
++void func5 (void);
++
++__attribute__ ((indirect_branch("keep")))
++void
++bar (int i)
++{
++ switch (i)
++ {
++ default:
++ func0 ();
++ break;
++ case 1:
++ func1 ();
++ break;
++ case 2:
++ func2 ();
++ break;
++ case 3:
++ func3 ();
++ break;
++ case 4:
++ func4 ();
++ break;
++ case 5:
++ func5 ();
++ break;
++ }
++}
++
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
+new file mode 100644
+index 0000000..50fbee2
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
+@@ -0,0 +1,20 @@
++/* { dg-do compile { target { ! x32 } } } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
++
++void (*dispatch) (char *);
++char buf[10];
++
++void
++foo (void)
++{
++ dispatch (buf);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "bnd ret" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
+new file mode 100644
+index 0000000..2976e67
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
+@@ -0,0 +1,21 @@
++/* { dg-do compile { target { ! x32 } } } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
++
++void (*dispatch) (char *);
++char buf[10];
++
++int
++foo (void)
++{
++ dispatch (buf);
++ return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */
++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "bnd ret" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
+new file mode 100644
+index 0000000..da4bc98
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
+@@ -0,0 +1,19 @@
++/* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
++
++void bar (char *);
++char buf[10];
++
++void
++foo (void)
++{
++ bar (buf);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "bnd ret" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
+new file mode 100644
+index 0000000..c64d12e
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
+@@ -0,0 +1,20 @@
++/* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */
++/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
++
++void bar (char *);
++char buf[10];
++
++int
++foo (void)
++{
++ bar (buf);
++ return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-times "bnd call\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler "bnd ret" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
+new file mode 100644
+index 0000000..49f27b4
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
+@@ -0,0 +1,19 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++void
++male_indirect_jump (long offset)
++{
++ dispatch(offset);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
+new file mode 100644
+index 0000000..a1e3eb6
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
+@@ -0,0 +1,19 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch[256];
++
++void
++male_indirect_jump (long offset)
++{
++ dispatch[offset](offset);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
+new file mode 100644
+index 0000000..395634e
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
+@@ -0,0 +1,20 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++int
++male_indirect_jump (long offset)
++{
++ dispatch(offset);
++ return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
+new file mode 100644
+index 0000000..fd3f633
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
+@@ -0,0 +1,20 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch[256];
++
++int
++male_indirect_jump (long offset)
++{
++ dispatch[offset](offset);
++ return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
+new file mode 100644
+index 0000000..ba2f92b
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
+@@ -0,0 +1,16 @@
++/* { dg-do compile { target *-*-linux* } } */
++/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-extern" } */
++
++extern void bar (void);
++
++void
++foo (void)
++{
++ bar ();
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
+new file mode 100644
+index 0000000..0c5a2d4
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
+@@ -0,0 +1,17 @@
++/* { dg-do compile { target *-*-linux* } } */
++/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-extern" } */
++
++extern void bar (void);
++
++int
++foo (void)
++{
++ bar ();
++ return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
+new file mode 100644
+index 0000000..6652523
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
+@@ -0,0 +1,43 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++
++void func0 (void);
++void func1 (void);
++void func2 (void);
++void func3 (void);
++void func4 (void);
++void func4 (void);
++void func5 (void);
++
++void
++bar (int i)
++{
++ switch (i)
++ {
++ default:
++ func0 ();
++ break;
++ case 1:
++ func1 ();
++ break;
++ case 2:
++ func2 ();
++ break;
++ case 3:
++ func3 ();
++ break;
++ case 4:
++ func4 ();
++ break;
++ case 5:
++ func5 ();
++ break;
++ }
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
+new file mode 100644
+index 0000000..68c0ff7
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
+@@ -0,0 +1,20 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++void
++male_indirect_jump (long offset)
++{
++ dispatch(offset);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
+new file mode 100644
+index 0000000..e2da1fc
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
+@@ -0,0 +1,20 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch[256];
++
++void
++male_indirect_jump (long offset)
++{
++ dispatch[offset](offset);
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
+new file mode 100644
+index 0000000..244fec7
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
+@@ -0,0 +1,21 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++int
++male_indirect_jump (long offset)
++{
++ dispatch(offset);
++ return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler-times {\tpause} 1 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
+new file mode 100644
+index 0000000..107ebe3
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
+@@ -0,0 +1,21 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch[256];
++
++int
++male_indirect_jump (long offset)
++{
++ dispatch[offset](offset);
++ return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler-times {\tpause} 1 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
+new file mode 100644
+index 0000000..17b04ef
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
+@@ -0,0 +1,17 @@
++/* { dg-do compile { target *-*-linux* } } */
++/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-inline" } */
++
++extern void bar (void);
++
++void
++foo (void)
++{
++ bar ();
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
+new file mode 100644
+index 0000000..d9eb112
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
+@@ -0,0 +1,18 @@
++/* { dg-do compile { target *-*-linux* } } */
++/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-inline" } */
++
++extern void bar (void);
++
++int
++foo (void)
++{
++ bar ();
++ return 0;
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler-times {\tpause} 1 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
+new file mode 100644
+index 0000000..d02b1dc
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
+@@ -0,0 +1,44 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++
++void func0 (void);
++void func1 (void);
++void func2 (void);
++void func3 (void);
++void func4 (void);
++void func4 (void);
++void func5 (void);
++
++void
++bar (int i)
++{
++ switch (i)
++ {
++ default:
++ func0 ();
++ break;
++ case 1:
++ func1 ();
++ break;
++ case 2:
++ func2 ();
++ break;
++ case 3:
++ func3 ();
++ break;
++ case 4:
++ func4 ();
++ break;
++ case 5:
++ func5 ();
++ break;
++ }
++}
++
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
+--
+2.7.4
+
diff --git a/meta/recipes-devtools/gcc/gcc-6.4/backport/0005-x86-Add-mfunction-return.patch
b/meta/recipes-devtools/gcc/gcc-6.4/backport/0005-x86-Add-mfunction-return.patch
new file mode 100644
index 0000000..5354c77
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-6.4/backport/0005-x86-Add-mfunction-return.patch
@@ -0,0 +1,1570 @@
+From e3270814b9e0caad63fbcdfd7ae9da2d52c97497 Mon Sep 17 00:00:00 2001
+From: "H.J. Lu" <hjl tools gmail com>
+Date: Sat, 6 Jan 2018 22:29:56 -0800
+Subject: [PATCH 05/12] x86: Add -mfunction-return=
+
+Add -mfunction-return= option to convert function return to call and
+return thunks. The default is 'keep', which keeps function return
+unmodified. 'thunk' converts function return to call and return thunk.
+'thunk-inline' converts function return to inlined call and return thunk.
+'thunk-extern' converts function return to external call and return
+thunk provided in a separate object file. You can control this behavior
+for a specific function by using the function attribute function_return.
+
+Function return thunk is the same as memory thunk for -mindirect-branch=
+where the return address is at the top of the stack:
+
+__x86_return_thunk:
+ call L2
+L1:
+ pause
+ lfence
+ jmp L1
+L2:
+ lea 8(%rsp), %rsp|lea 4(%esp), %esp
+ ret
+
+and function return becomes
+
+ jmp __x86_return_thunk
+
+-mindirect-branch= tests are updated with -mfunction-return=keep to
+avoid false test failures when -mfunction-return=thunk is added to
+RUNTESTFLAGS for "make check".
+
+gcc/
+
+ Backport from mainline
+ 2018-01-14 H.J. Lu <hongjiu lu intel com>
+
+ * config/i386/i386-protos.h (ix86_output_function_return): New.
+ * config/i386/i386.c (ix86_set_indirect_branch_type): Also
+ set function_return_type.
+ (indirect_thunk_name): Add ret_p to indicate thunk for function
+ return.
+ (output_indirect_thunk_function): Pass false to
+ indirect_thunk_name.
+ (ix86_output_indirect_branch_via_reg): Likewise.
+ (ix86_output_indirect_branch_via_push): Likewise.
+ (output_indirect_thunk_function): Create alias for function
+ return thunk if regno < 0.
+ (ix86_output_function_return): New function.
+ (ix86_handle_fndecl_attribute): Handle function_return.
+ (ix86_attribute_table): Add function_return.
+ * config/i386/i386.h (machine_function): Add
+ function_return_type.
+ * config/i386/i386.md (simple_return_internal): Use
+ ix86_output_function_return.
+ (simple_return_internal_long): Likewise.
+ * config/i386/i386.opt (mfunction-return=): New option.
+ (indirect_branch): Mention -mfunction-return=.
+ * doc/extend.texi: Document function_return function attribute.
+ * doc/invoke.texi: Document -mfunction-return= option.
+
+gcc/testsuite/
+
+ Backport from mainline
+ 2018-01-14 H.J. Lu <hongjiu lu intel com>
+
+ * gcc.target/i386/indirect-thunk-1.c (dg-options): Add
+ -mfunction-return=keep.
+ * gcc.target/i386/indirect-thunk-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-5.c: Likewise.
+ * gcc.target/i386/indirect-thunk-6.c: Likewise.
+ * gcc.target/i386/indirect-thunk-7.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-1.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-5.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-6.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-7.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-8.c: Likewise.
+ * gcc.target/i386/indirect-thunk-bnd-1.c: Likewise.
+ * gcc.target/i386/indirect-thunk-bnd-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-bnd-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-bnd-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-1.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-5.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-6.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-1.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-5.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-6.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-7.c: Likewise.
+ * gcc.target/i386/ret-thunk-1.c: New test.
+ * gcc.target/i386/ret-thunk-10.c: Likewise.
+ * gcc.target/i386/ret-thunk-11.c: Likewise.
+ * gcc.target/i386/ret-thunk-12.c: Likewise.
+ * gcc.target/i386/ret-thunk-13.c: Likewise.
+ * gcc.target/i386/ret-thunk-14.c: Likewise.
+ * gcc.target/i386/ret-thunk-15.c: Likewise.
+ * gcc.target/i386/ret-thunk-16.c: Likewise.
+ * gcc.target/i386/ret-thunk-2.c: Likewise.
+ * gcc.target/i386/ret-thunk-3.c: Likewise.
+ * gcc.target/i386/ret-thunk-4.c: Likewise.
+ * gcc.target/i386/ret-thunk-5.c: Likewise.
+ * gcc.target/i386/ret-thunk-6.c: Likewise.
+ * gcc.target/i386/ret-thunk-7.c: Likewise.
+ * gcc.target/i386/ret-thunk-8.c: Likewise.
+ * gcc.target/i386/ret-thunk-9.c: Likewise.
+
+i386: Don't use ASM_OUTPUT_DEF for TARGET_MACHO
+
+ASM_OUTPUT_DEF isn't defined for TARGET_MACHO. Use ASM_OUTPUT_LABEL to
+generate the __x86_return_thunk label, instead of the set directive.
+Update testcase to remove the __x86_return_thunk label check. Since
+-fno-pic is ignored on Darwin, update testcases to sscan or "push"
+only on Linux.
+
+gcc/
+
+ Backport from mainline
+ 2018-01-15 H.J. Lu <hongjiu lu intel com>
+
+ PR target/83839
+ * config/i386/i386.c (output_indirect_thunk_function): Use
+ ASM_OUTPUT_LABEL, instead of ASM_OUTPUT_DEF, for TARGET_MACHO
+ for __x86.return_thunk.
+
+gcc/testsuite/
+
+ Backport from mainline
+ 2018-01-15 H.J. Lu <hongjiu lu intel com>
+
+ PR target/83839
+ * gcc.target/i386/indirect-thunk-1.c: Scan for "push" only on
+ Linux.
+ * gcc.target/i386/indirect-thunk-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-7.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-1.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-5.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-6.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-7.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-1.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
+ * gcc.target/i386/indirect-thunk-register-1.c: Likewise.
+ * gcc.target/i386/indirect-thunk-register-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-register-4.c: Likewise.
+ * gcc.target/i386/ret-thunk-10.c: Likewise.
+ * gcc.target/i386/ret-thunk-11.c: Likewise.
+ * gcc.target/i386/ret-thunk-12.c: Likewise.
+ * gcc.target/i386/ret-thunk-13.c: Likewise.
+ * gcc.target/i386/ret-thunk-14.c: Likewise.
+ * gcc.target/i386/ret-thunk-15.c: Likewise.
+ * gcc.target/i386/ret-thunk-9.c: Don't check the
+ __x86_return_thunk label.
+ Scan for "push" only for Linux.
+
+Upstream-Status: Pending
+
+Signed-off-by: Juro Bystricky <juro bystricky intel com>
+
+---
+ gcc/config/i386/i386-protos.h | 1 +
+ gcc/config/i386/i386.c | 152 +++++++++++++++++++--
+ gcc/config/i386/i386.h | 3 +
+ gcc/config/i386/i386.md | 9 +-
+ gcc/config/i386/i386.opt | 6 +-
+ gcc/doc/extend.texi | 9 ++
+ gcc/doc/invoke.texi | 14 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-1.c | 4 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-2.c | 4 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-3.c | 4 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-4.c | 4 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-5.c | 2 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-6.c | 2 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-7.c | 4 +-
+ .../gcc.target/i386/indirect-thunk-attr-1.c | 4 +-
+ .../gcc.target/i386/indirect-thunk-attr-2.c | 4 +-
+ .../gcc.target/i386/indirect-thunk-attr-3.c | 4 +-
+ .../gcc.target/i386/indirect-thunk-attr-4.c | 4 +-
+ .../gcc.target/i386/indirect-thunk-attr-5.c | 4 +-
+ .../gcc.target/i386/indirect-thunk-attr-6.c | 4 +-
+ .../gcc.target/i386/indirect-thunk-attr-7.c | 4 +-
+ .../gcc.target/i386/indirect-thunk-attr-8.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-bnd-1.c | 4 +-
+ .../gcc.target/i386/indirect-thunk-bnd-2.c | 4 +-
+ .../gcc.target/i386/indirect-thunk-bnd-3.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-bnd-4.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-extern-1.c | 4 +-
+ .../gcc.target/i386/indirect-thunk-extern-2.c | 4 +-
+ .../gcc.target/i386/indirect-thunk-extern-3.c | 4 +-
+ .../gcc.target/i386/indirect-thunk-extern-4.c | 4 +-
+ .../gcc.target/i386/indirect-thunk-extern-5.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-extern-6.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-extern-7.c | 4 +-
+ .../gcc.target/i386/indirect-thunk-inline-1.c | 4 +-
+ .../gcc.target/i386/indirect-thunk-inline-2.c | 4 +-
+ .../gcc.target/i386/indirect-thunk-inline-3.c | 4 +-
+ .../gcc.target/i386/indirect-thunk-inline-4.c | 4 +-
+ .../gcc.target/i386/indirect-thunk-inline-5.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-inline-6.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-inline-7.c | 4 +-
+ gcc/testsuite/gcc.target/i386/ret-thunk-1.c | 13 ++
+ gcc/testsuite/gcc.target/i386/ret-thunk-10.c | 23 ++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-11.c | 23 ++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-12.c | 22 +++
+ gcc/testsuite/gcc.target/i386/ret-thunk-13.c | 22 +++
+ gcc/testsuite/gcc.target/i386/ret-thunk-14.c | 22 +++
+ gcc/testsuite/gcc.target/i386/ret-thunk-15.c | 22 +++
+ gcc/testsuite/gcc.target/i386/ret-thunk-16.c | 18 +++
+ gcc/testsuite/gcc.target/i386/ret-thunk-2.c | 13 ++
+ gcc/testsuite/gcc.target/i386/ret-thunk-3.c | 12 ++
+ gcc/testsuite/gcc.target/i386/ret-thunk-4.c | 12 ++
+ gcc/testsuite/gcc.target/i386/ret-thunk-5.c | 15 ++
+ gcc/testsuite/gcc.target/i386/ret-thunk-6.c | 14 ++
+ gcc/testsuite/gcc.target/i386/ret-thunk-7.c | 13 ++
+ gcc/testsuite/gcc.target/i386/ret-thunk-8.c | 14 ++
+ gcc/testsuite/gcc.target/i386/ret-thunk-9.c | 24 ++++
+ 56 files changed, 516 insertions(+), 74 deletions(-)
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-1.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-10.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-11.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-12.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-13.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-14.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-15.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-16.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-2.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-3.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-4.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-5.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-6.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-7.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-8.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-9.c
+
+diff --git a/gcc/config/i386/i386-protos.h b/gcc/config/i386/i386-protos.h
+index eca4cbf..620d70e 100644
+--- a/gcc/config/i386/i386-protos.h
++++ b/gcc/config/i386/i386-protos.h
+@@ -312,6 +312,7 @@ extern enum attr_cpu ix86_schedule;
+
+ extern const char * ix86_output_call_insn (rtx_insn *insn, rtx call_op);
+ extern const char * ix86_output_indirect_jmp (rtx call_op, bool ret_p);
++extern const char * ix86_output_function_return (bool long_p);
+ extern bool ix86_operands_ok_for_move_multiple (rtx *operands, bool load,
+ enum machine_mode mode);
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 0b9fc4d..34e26a3 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -6390,6 +6390,31 @@ ix86_set_indirect_branch_type (tree fndecl)
+ else
+ cfun->machine->indirect_branch_type = ix86_indirect_branch;
+ }
++
++ if (cfun->machine->function_return_type == indirect_branch_unset)
++ {
++ tree attr = lookup_attribute ("function_return",
++ DECL_ATTRIBUTES (fndecl));
++ if (attr != NULL)
++ {
++ tree args = TREE_VALUE (attr);
++ if (args == NULL)
++ gcc_unreachable ();
++ tree cst = TREE_VALUE (args);
++ if (strcmp (TREE_STRING_POINTER (cst), "keep") == 0)
++ cfun->machine->function_return_type = indirect_branch_keep;
++ else if (strcmp (TREE_STRING_POINTER (cst), "thunk") == 0)
++ cfun->machine->function_return_type = indirect_branch_thunk;
++ else if (strcmp (TREE_STRING_POINTER (cst), "thunk-inline") == 0)
++ cfun->machine->function_return_type = indirect_branch_thunk_inline;
++ else if (strcmp (TREE_STRING_POINTER (cst), "thunk-extern") == 0)
++ cfun->machine->function_return_type = indirect_branch_thunk_extern;
++ else
++ gcc_unreachable ();
++ }
++ else
++ cfun->machine->function_return_type = ix86_function_return;
++ }
+ }
+
+ /* Establish appropriate back-end context for processing the function
+@@ -11036,8 +11061,12 @@ static int indirect_thunks_bnd_used;
+ /* Fills in the label name that should be used for the indirect thunk. */
+
+ static void
+-indirect_thunk_name (char name[32], int regno, bool need_bnd_p)
++indirect_thunk_name (char name[32], int regno, bool need_bnd_p,
++ bool ret_p)
+ {
++ if (regno >= 0 && ret_p)
++ gcc_unreachable ();
++
+ if (USE_HIDDEN_LINKONCE)
+ {
+ const char *bnd = need_bnd_p ? "_bnd" : "";
+@@ -11052,7 +11081,10 @@ indirect_thunk_name (char name[32], int regno, bool need_bnd_p)
+ bnd, reg_prefix, reg_names[regno]);
+ }
+ else
+- sprintf (name, "__x86_indirect_thunk%s", bnd);
++ {
++ const char *ret = ret_p ? "return" : "indirect";
++ sprintf (name, "__x86_%s_thunk%s", ret, bnd);
++ }
+ }
+ else
+ {
+@@ -11065,10 +11097,20 @@ indirect_thunk_name (char name[32], int regno, bool need_bnd_p)
+ }
+ else
+ {
+- if (need_bnd_p)
+- ASM_GENERATE_INTERNAL_LABEL (name, "LITB", 0);
++ if (ret_p)
++ {
++ if (need_bnd_p)
++ ASM_GENERATE_INTERNAL_LABEL (name, "LRTB", 0);
++ else
++ ASM_GENERATE_INTERNAL_LABEL (name, "LRT", 0);
++ }
+ else
+- ASM_GENERATE_INTERNAL_LABEL (name, "LIT", 0);
++ {
++ if (need_bnd_p)
++ ASM_GENERATE_INTERNAL_LABEL (name, "LITB", 0);
++ else
++ ASM_GENERATE_INTERNAL_LABEL (name, "LIT", 0);
++ }
+ }
+ }
+ }
+@@ -11163,7 +11205,7 @@ output_indirect_thunk_function (bool need_bnd_p, int regno)
+ tree decl;
+
+ /* Create __x86_indirect_thunk/__x86_indirect_thunk_bnd. */
+- indirect_thunk_name (name, regno, need_bnd_p);
++ indirect_thunk_name (name, regno, need_bnd_p, false);
+ decl = build_decl (BUILTINS_LOCATION, FUNCTION_DECL,
+ get_identifier (name),
+ build_function_type_list (void_type_node, NULL_TREE));
+@@ -11206,6 +11248,36 @@ output_indirect_thunk_function (bool need_bnd_p, int regno)
+ ASM_OUTPUT_LABEL (asm_out_file, name);
+ }
+
++ if (regno < 0)
++ {
++ /* Create alias for __x86.return_thunk/__x86.return_thunk_bnd. */
++ char alias[32];
++
++ indirect_thunk_name (alias, regno, need_bnd_p, true);
++#if TARGET_MACHO
++ if (TARGET_MACHO)
++ {
++ fputs ("\t.weak_definition\t", asm_out_file);
++ assemble_name (asm_out_file, alias);
++ fputs ("\n\t.private_extern\t", asm_out_file);
++ assemble_name (asm_out_file, alias);
++ putc ('\n', asm_out_file);
++ ASM_OUTPUT_LABEL (asm_out_file, alias);
++ }
++#else
++ ASM_OUTPUT_DEF (asm_out_file, alias, name);
++ if (USE_HIDDEN_LINKONCE)
++ {
++ fputs ("\t.globl\t", asm_out_file);
++ assemble_name (asm_out_file, alias);
++ putc ('\n', asm_out_file);
++ fputs ("\t.hidden\t", asm_out_file);
++ assemble_name (asm_out_file, alias);
++ putc ('\n', asm_out_file);
++ }
++#endif
++ }
++
+ DECL_INITIAL (decl) = make_node (BLOCK);
+ current_function_decl = decl;
+ allocate_struct_function (decl, false);
+@@ -27687,7 +27759,7 @@ ix86_output_indirect_branch_via_reg (rtx call_op, bool sibcall_p)
+ else
+ indirect_thunks_used |= 1 << i;
+ }
+- indirect_thunk_name (thunk_name_buf, regno, need_bnd_p);
++ indirect_thunk_name (thunk_name_buf, regno, need_bnd_p, false);
+ thunk_name = thunk_name_buf;
+ }
+ else
+@@ -27796,7 +27868,7 @@ ix86_output_indirect_branch_via_push (rtx call_op, const char *xasm,
+ else
+ indirect_thunk_needed = true;
+ }
+- indirect_thunk_name (thunk_name_buf, regno, need_bnd_p);
++ indirect_thunk_name (thunk_name_buf, regno, need_bnd_p, false);
+ thunk_name = thunk_name_buf;
+ }
+ else
+@@ -27931,6 +28003,46 @@ ix86_output_indirect_jmp (rtx call_op, bool ret_p)
+ return "%!jmp\t%A0";
+ }
+
++/* Output function return. CALL_OP is the jump target. Add a REP
++ prefix to RET if LONG_P is true and function return is kept. */
++
++const char *
++ix86_output_function_return (bool long_p)
++{
++ if (cfun->machine->function_return_type != indirect_branch_keep)
++ {
++ char thunk_name[32];
++ bool need_bnd_p = ix86_bnd_prefixed_insn_p (current_output_insn);
++
++ if (cfun->machine->function_return_type
++ != indirect_branch_thunk_inline)
++ {
++ bool need_thunk = (cfun->machine->function_return_type
++ == indirect_branch_thunk);
++ indirect_thunk_name (thunk_name, -1, need_bnd_p, true);
++ if (need_bnd_p)
++ {
++ indirect_thunk_bnd_needed |= need_thunk;
++ fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name);
++ }
++ else
++ {
++ indirect_thunk_needed |= need_thunk;
++ fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
++ }
++ }
++ else
++ output_indirect_thunk (need_bnd_p, -1);
++
++ return "";
++ }
++
++ if (!long_p || ix86_bnd_prefixed_insn_p (current_output_insn))
++ return "%!ret";
++
++ return "rep%; ret";
++}
++
+ /* Output the assembly for a call instruction. */
+
+ const char *
+@@ -45461,6 +45573,28 @@ ix86_handle_fndecl_attribute (tree *node, tree name, tree args, int,
+ }
+ }
+
++ if (is_attribute_p ("function_return", name))
++ {
++ tree cst = TREE_VALUE (args);
++ if (TREE_CODE (cst) != STRING_CST)
++ {
++ warning (OPT_Wattributes,
++ "%qE attribute requires a string constant argument",
++ name);
++ *no_add_attrs = true;
++ }
++ else if (strcmp (TREE_STRING_POINTER (cst), "keep") != 0
++ && strcmp (TREE_STRING_POINTER (cst), "thunk") != 0
++ && strcmp (TREE_STRING_POINTER (cst), "thunk-inline") != 0
++ && strcmp (TREE_STRING_POINTER (cst), "thunk-extern") != 0)
++ {
++ warning (OPT_Wattributes,
++ "argument to %qE attribute is not "
++ "(keep|thunk|thunk-inline|thunk-extern)", name);
++ *no_add_attrs = true;
++ }
++ }
++
+ return NULL_TREE;
+ }
+
+@@ -49690,6 +49824,8 @@ static const struct attribute_spec ix86_attribute_table[] =
+ ix86_handle_callee_pop_aggregate_return, true },
+ { "indirect_branch", 1, 1, true, false, false,
+ ix86_handle_fndecl_attribute, false },
++ { "function_return", 1, 1, true, false, false,
++ ix86_handle_fndecl_attribute, false },
+
+ /* End element. */
+ { NULL, 0, 0, false, false, false, NULL, false }
+diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
+index 9dccdb0..b34bc11 100644
+--- a/gcc/config/i386/i386.h
++++ b/gcc/config/i386/i386.h
+@@ -2579,6 +2579,9 @@ struct GTY(()) machine_function {
+ "indirect_jump" or "tablejump". */
+ BOOL_BITFIELD has_local_indirect_jump : 1;
+
++ /* How to generate function return. */
++ ENUM_BITFIELD(indirect_branch) function_return_type : 3;
++
+ /* If true, there is register available for argument passing. This
+ is used only in ix86_function_ok_for_sibcall by 32-bit to determine
+ if there is scratch register available for indirect sibcall. In
+diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
+index 153e162..2da671e 100644
+--- a/gcc/config/i386/i386.md
++++ b/gcc/config/i386/i386.md
+@@ -12489,7 +12489,7 @@
+ (define_insn "simple_return_internal"
+ [(simple_return)]
+ "reload_completed"
+- "%!ret"
++ "* return ix86_output_function_return (false);"
+ [(set_attr "length" "1")
+ (set_attr "atom_unit" "jeu")
+ (set_attr "length_immediate" "0")
+@@ -12503,12 +12503,7 @@
+ [(simple_return)
+ (unspec [(const_int 0)] UNSPEC_REP)]
+ "reload_completed"
+-{
+- if (ix86_bnd_prefixed_insn_p (insn))
+- return "%!ret";
+-
+- return "rep%; ret";
+-}
++ "* return ix86_output_function_return (true);"
+ [(set_attr "length" "2")
+ (set_attr "atom_unit" "jeu")
+ (set_attr "length_immediate" "0")
+diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt
+index 5ffa334..ad5916f 100644
+--- a/gcc/config/i386/i386.opt
++++ b/gcc/config/i386/i386.opt
+@@ -902,9 +902,13 @@ mindirect-branch=
+ Target Report RejectNegative Joined Enum(indirect_branch) Var(ix86_indirect_branch)
Init(indirect_branch_keep)
+ Convert indirect call and jump to call and return thunks.
+
++mfunction-return=
++Target Report RejectNegative Joined Enum(indirect_branch) Var(ix86_function_return)
Init(indirect_branch_keep)
++Convert function return to call and return thunk.
++
+ Enum
+ Name(indirect_branch) Type(enum indirect_branch)
+-Known indirect branch choices (for use with the -mindirect-branch= option):
++Known indirect branch choices (for use with the -mindirect-branch=/-mfunction-return= options):
+
+ EnumValue
+ Enum(indirect_branch) String(keep) Value(indirect_branch_keep)
+diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
+index 8668dae..2cb6bd1 100644
+--- a/gcc/doc/extend.texi
++++ b/gcc/doc/extend.texi
+@@ -5429,6 +5429,15 @@ call and jump to call and return thunk. @samp{thunk-inline} converts
+ indirect call and jump to inlined call and return thunk.
+ @samp{thunk-extern} converts indirect call and jump to external call
+ and return thunk provided in a separate object file.
++
++@item function_return("@var{choice}")
++@cindex @code{function_return} function attribute, x86
++On x86 targets, the @code{function_return} attribute causes the compiler
++to convert function return with @var{choice}. @samp{keep} keeps function
++return unmodified. @samp{thunk} converts function return to call and
++return thunk. @samp{thunk-inline} converts function return to inlined
++call and return thunk. @samp{thunk-extern} converts function return to
++external call and return thunk provided in a separate object file.
+ @end table
+
+ On the x86, the inliner does not inline a
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index ff9a194..fa63dc5 100644
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -1169,7 +1169,8 @@ See RS/6000 and PowerPC Options.
+ -msse2avx -mfentry -mrecord-mcount -mnop-mcount -m8bit-idiv @gol
+ -mavx256-split-unaligned-load -mavx256-split-unaligned-store @gol
+ -malign-data=@var{type} -mstack-protector-guard=@var{guard} @gol
+--mmitigate-rop -mindirect-branch=@var{choice}}
++-mmitigate-rop -mindirect-branch=@var{choice} @gol
++-mfunction-return=@var{choice}}
+
+ @emph{x86 Windows Options}
+ @gccoptlist{-mconsole -mcygwin -mno-cygwin -mdll @gol
+@@ -24229,6 +24230,17 @@ to external call and return thunk provided in a separate object file.
+ You can control this behavior for a specific function by using the
+ function attribute @code{indirect_branch}. @xref{Function Attributes}.
+
++@item -mfunction-return=@var{choice}
++@opindex -mfunction-return
++Convert function return with @var{choice}. The default is @samp{keep},
++which keeps function return unmodified. @samp{thunk} converts function
++return to call and return thunk. @samp{thunk-inline} converts function
++return to inlined call and return thunk. @samp{thunk-extern} converts
++function return to external call and return thunk provided in a separate
++object file. You can control this behavior for a specific function by
++using the function attribute @code{function_return}.
++@xref{Function Attributes}.
++
+ @end table
+
+ These @samp{-m} switches are supported in addition to the above
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
+index d983e1c..e365ef5 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+@@ -11,7 +11,7 @@ male_indirect_jump (long offset)
+ dispatch(offset);
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
+index 58f09b4..05a51ad 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+@@ -11,7 +11,7 @@ male_indirect_jump (long offset)
+ dispatch[offset](offset);
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
+index f20d35c..3c0d4c3 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
+index 0eff8fb..14d4ef6 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
+index a25b20d..b4836c3 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk" } */
++/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */
+
+ extern void bar (void);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
+index cff114a..1f06bd1 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk" } */
++/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */
+
+ extern void bar (void);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
+index afdb600..bc6b47a 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+
+ void func0 (void);
+ void func1 (void);
+@@ -35,7 +35,7 @@ bar (int i)
+ }
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } }
} } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
+index d64d978..2257be3 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+@@ -14,7 +14,7 @@ male_indirect_jump (long offset)
+ dispatch(offset);
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
+index 9306745..e9cfdc5 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
+ dispatch[offset](offset);
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
+index 97744d6..f938db0 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+@@ -14,7 +14,7 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
+index bfce3ea..4e58599 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+@@ -13,7 +13,7 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
+index 0833606..b8d5024 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+@@ -14,7 +14,7 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
+index 2eba0fb..455adab 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+@@ -13,7 +13,7 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
+index f58427e..4595b84 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
+
+ void func0 (void);
+ void func1 (void);
+@@ -36,7 +36,7 @@ bar (int i)
+ }
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } }
} } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c
+index 564ed39..d730d31 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+
+ void func0 (void);
+ void func1 (void);
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
+index 50fbee2..5e3e118 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target { ! x32 } } } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic"
} */
+
+ void (*dispatch) (char *);
+ char buf[10];
+@@ -10,7 +10,7 @@ foo (void)
+ dispatch (buf);
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */
+ /* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
+index 2976e67..2801aa4 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target { ! x32 } } } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic"
} */
+
+ void (*dispatch) (char *);
+ char buf[10];
+@@ -11,7 +11,7 @@ foo (void)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */
+ /* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */
+ /* { dg-final { scan-assembler "bnd jmp\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
+index da4bc98..70b4fb3 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic
-fno-plt" } */
+
+ void bar (char *);
+ char buf[10];
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
+index c64d12e..3baf03e 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */
+-/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic
-fno-plt" } */
+
+ void bar (char *);
+ char buf[10];
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
+index 49f27b4..edeb264 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+@@ -11,7 +11,7 @@ male_indirect_jump (long offset)
+ dispatch(offset);
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
+index a1e3eb6..1d00413 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+@@ -11,7 +11,7 @@ male_indirect_jump (long offset)
+ dispatch[offset](offset);
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
+index 395634e..06ebf1c 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
+index fd3f633..1c8f944 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
+index ba2f92b..21740ac 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-extern" } */
++/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */
+
+ extern void bar (void);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
+index 0c5a2d4..a77c1f4 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-extern" } */
++/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */
+
+ extern void bar (void);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
+index 6652523..86e9fd1 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+
+ void func0 (void);
+ void func1 (void);
+@@ -35,7 +35,7 @@ bar (int i)
+ }
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } }
} } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
+index 68c0ff7..3ecde87 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+@@ -11,7 +11,7 @@ male_indirect_jump (long offset)
+ dispatch(offset);
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
+index e2da1fc..df32a19 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+@@ -11,7 +11,7 @@ male_indirect_jump (long offset)
+ dispatch[offset](offset);
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
+index 244fec7..9540996 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times {\tpause} 1 } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
+index 107ebe3..f3db6e2 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times {\tpause} 1 } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
+index 17b04ef..0f687c3 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-inline" } */
++/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */
+
+ extern void bar (void);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
+index d9eb112..b27c6fc 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-inline" } */
++/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */
+
+ extern void bar (void);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
+index d02b1dc..764a375 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+
+ void func0 (void);
+ void func1 (void);
+@@ -35,7 +35,7 @@ bar (int i)
+ }
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } }
} } */
+ /* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-1.c b/gcc/testsuite/gcc.target/i386/ret-thunk-1.c
+new file mode 100644
+index 0000000..7223f67
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-1.c
+@@ -0,0 +1,13 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=thunk" } */
++
++void
++foo (void)
++{
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-10.c b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
+new file mode 100644
+index 0000000..3a6727b
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
+@@ -0,0 +1,23 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=thunk-inline -mindirect-branch=thunk -fno-pic" } */
++
++extern void (*bar) (void);
++
++int
++foo (void)
++{
++ bar ();
++ return 0;
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler-times {\tpause} 2 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 2 } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk:" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" { target { x32 } } } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-11.c b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
+new file mode 100644
+index 0000000..b8f6818
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
+@@ -0,0 +1,23 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=thunk-extern -mindirect-branch=thunk -fno-pic" } */
++
++extern void (*bar) (void);
++
++int
++foo (void)
++{
++ bar ();
++ return 0;
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler-times {\tpause} 1 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk:" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" { target { x32 } } } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-12.c b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
+new file mode 100644
+index 0000000..01b0a02
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
+@@ -0,0 +1,22 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
++
++extern void (*bar) (void);
++
++int
++foo (void)
++{
++ bar ();
++ return 0;
++}
++
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler-times {\tpause} 1 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk:" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" { target { x32 } } } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-13.c b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
+new file mode 100644
+index 0000000..4b497b5
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
+@@ -0,0 +1,22 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
++
++extern void (*bar) (void);
++extern int foo (void) __attribute__ ((function_return("thunk")));
++
++int
++foo (void)
++{
++ bar ();
++ return 0;
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler-times {\tpause} 2 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 2 } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 3 } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 3 } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-14.c b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
+new file mode 100644
+index 0000000..4ae4c44
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
+@@ -0,0 +1,22 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
++
++extern void (*bar) (void);
++
++__attribute__ ((function_return("thunk-inline")))
++int
++foo (void)
++{
++ bar ();
++ return 0;
++}
++
++/* { dg-final { scan-assembler-times {\tpause} 1 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-15.c b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
+new file mode 100644
+index 0000000..5b5bc76
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
+@@ -0,0 +1,22 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=keep -fno-pic" } */
++
++extern void (*bar) (void);
++
++__attribute__ ((function_return("thunk-extern"), indirect_branch("thunk")))
++int
++foo (void)
++{
++ bar ();
++ return 0;
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-times {\tpause} 1 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-16.c b/gcc/testsuite/gcc.target/i386/ret-thunk-16.c
+new file mode 100644
+index 0000000..a16cad1
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-16.c
+@@ -0,0 +1,18 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=thunk-inline -mindirect-branch=thunk-extern -fno-pic" } */
++
++extern void (*bar) (void);
++
++__attribute__ ((function_return("keep"), indirect_branch("keep")))
++int
++foo (void)
++{
++ bar ();
++ return 0;
++}
++
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler-not "__x86_return_thunk" } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-2.c b/gcc/testsuite/gcc.target/i386/ret-thunk-2.c
+new file mode 100644
+index 0000000..c6659e3
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-2.c
+@@ -0,0 +1,13 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=thunk-inline" } */
++
++void
++foo (void)
++{
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-3.c b/gcc/testsuite/gcc.target/i386/ret-thunk-3.c
+new file mode 100644
+index 0000000..0f7f388
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-3.c
+@@ -0,0 +1,12 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=thunk-extern" } */
++
++void
++foo (void)
++{
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-4.c b/gcc/testsuite/gcc.target/i386/ret-thunk-4.c
+new file mode 100644
+index 0000000..9ae37e8
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-4.c
+@@ -0,0 +1,12 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=keep" } */
++
++void
++foo (void)
++{
++}
++
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-5.c b/gcc/testsuite/gcc.target/i386/ret-thunk-5.c
+new file mode 100644
+index 0000000..4bd0d2a
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-5.c
+@@ -0,0 +1,15 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=keep" } */
++
++extern void foo (void) __attribute__ ((function_return("thunk")));
++
++void
++foo (void)
++{
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-6.c b/gcc/testsuite/gcc.target/i386/ret-thunk-6.c
+new file mode 100644
+index 0000000..053841f
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-6.c
+@@ -0,0 +1,14 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=keep" } */
++
++__attribute__ ((function_return("thunk-inline")))
++void
++foo (void)
++{
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-7.c b/gcc/testsuite/gcc.target/i386/ret-thunk-7.c
+new file mode 100644
+index 0000000..262e678
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-7.c
+@@ -0,0 +1,13 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=keep" } */
++
++__attribute__ ((function_return("thunk-extern")))
++void
++foo (void)
++{
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-8.c b/gcc/testsuite/gcc.target/i386/ret-thunk-8.c
+new file mode 100644
+index 0000000..c1658e9
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-8.c
+@@ -0,0 +1,14 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=thunk-inline" } */
++
++extern void foo (void) __attribute__ ((function_return("keep")));
++
++void
++foo (void)
++{
++}
++
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
+new file mode 100644
+index 0000000..fa24a1f
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
+@@ -0,0 +1,24 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mfunction-return=thunk -mindirect-branch=thunk -fno-pic" } */
++
++extern void (*bar) (void);
++
++int
++foo (void)
++{
++ bar ();
++ return 0;
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk:" } } */
++/* { dg-final { scan-assembler-times {\tpause} 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times {\tlfence} 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times {\tpause} 2 { target { x32 } } } } */
++/* { dg-final { scan-assembler-times {\tlfence} 2 { target { x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+--
+2.7.4
+
diff --git a/meta/recipes-devtools/gcc/gcc-6.4/backport/0006-x86-Add-mindirect-branch-register.patch
b/meta/recipes-devtools/gcc/gcc-6.4/backport/0006-x86-Add-mindirect-branch-register.patch
new file mode 100644
index 0000000..ad73691
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-6.4/backport/0006-x86-Add-mindirect-branch-register.patch
@@ -0,0 +1,946 @@
+From 3f1c39fb543884d36e759a6dc196a8e914eb4f73 Mon Sep 17 00:00:00 2001
+From: "H.J. Lu" <hjl tools gmail com>
+Date: Sat, 6 Jan 2018 22:29:56 -0800
+Subject: [PATCH 06/12] x86: Add -mindirect-branch-register
+
+Add -mindirect-branch-register to force indirect branch via register.
+This is implemented by disabling patterns of indirect branch via memory,
+similar to TARGET_X32.
+
+-mindirect-branch= and -mfunction-return= tests are updated with
+-mno-indirect-branch-register to avoid false test failures when
+-mindirect-branch-register is added to RUNTESTFLAGS for "make check".
+
+gcc/
+
+ Backport from mainline
+ 2018-01-14 H.J. Lu <hongjiu lu intel com>
+
+ * config/i386/constraints.md (Bs): Disallow memory operand for
+ -mindirect-branch-register.
+ (Bw): Likewise.
+ * config/i386/predicates.md (indirect_branch_operand): Likewise.
+ (GOT_memory_operand): Likewise.
+ (call_insn_operand): Likewise.
+ (sibcall_insn_operand): Likewise.
+ (GOT32_symbol_operand): Likewise.
+ * config/i386/i386.md (indirect_jump): Call convert_memory_address
+ for -mindirect-branch-register.
+ (tablejump): Likewise.
+ (*sibcall_memory): Likewise.
+ (*sibcall_value_memory): Likewise.
+ Disallow peepholes of indirect call and jump via memory for
+ -mindirect-branch-register.
+ (*call_pop): Replace m with Bw.
+ (*call_value_pop): Likewise.
+ (*sibcall_pop_memory): Replace m with Bs.
+ * config/i386/i386.opt (mindirect-branch-register): New option.
+ * doc/invoke.texi: Document -mindirect-branch-register option.
+
+gcc/testsuite/
+
+ Backport from mainline
+ 2018-01-14 H.J. Lu <hongjiu lu intel com>
+
+ * gcc.target/i386/indirect-thunk-1.c (dg-options): Add
+ -mno-indirect-branch-register.
+ * gcc.target/i386/indirect-thunk-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-5.c: Likewise.
+ * gcc.target/i386/indirect-thunk-6.c: Likewise.
+ * gcc.target/i386/indirect-thunk-7.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-1.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-5.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-6.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-7.c: Likewise.
+ * gcc.target/i386/indirect-thunk-bnd-1.c: Likewise.
+ * gcc.target/i386/indirect-thunk-bnd-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-bnd-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-bnd-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-1.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-5.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-6.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-1.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-5.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-6.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-7.c: Likewise.
+ * gcc.target/i386/ret-thunk-10.c: Likewise.
+ * gcc.target/i386/ret-thunk-11.c: Likewise.
+ * gcc.target/i386/ret-thunk-12.c: Likewise.
+ * gcc.target/i386/ret-thunk-13.c: Likewise.
+ * gcc.target/i386/ret-thunk-14.c: Likewise.
+ * gcc.target/i386/ret-thunk-15.c: Likewise.
+ * gcc.target/i386/ret-thunk-9.c: Likewise.
+ * gcc.target/i386/indirect-thunk-register-1.c: New test.
+ * gcc.target/i386/indirect-thunk-register-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-register-3.c: Likewise.
+
+i386: Rename to ix86_indirect_branch_register
+
+Rename the variable for -mindirect-branch-register to
+ix86_indirect_branch_register to match the command-line option name.
+
+ Backport from mainline
+ 2018-01-15 H.J. Lu <hongjiu lu intel com>
+
+ * config/i386/constraints.md (Bs): Replace
+ ix86_indirect_branch_thunk_register with
+ ix86_indirect_branch_register.
+ (Bw): Likewise.
+ * config/i386/i386.md (indirect_jump): Likewise.
+ (tablejump): Likewise.
+ (*sibcall_memory): Likewise.
+ (*sibcall_value_memory): Likewise.
+ Peepholes of indirect call and jump via memory: Likewise.
+ * config/i386/i386.opt: Likewise.
+ * config/i386/predicates.md (indirect_branch_operand): Likewise.
+ (GOT_memory_operand): Likewise.
+ (call_insn_operand): Likewise.
+ (sibcall_insn_operand): Likewise.
+ (GOT32_symbol_operand): Likewise.
+
+x86: Rewrite ix86_indirect_branch_register logic
+
+Rewrite ix86_indirect_branch_register logic with
+
+(and (not (match_test "ix86_indirect_branch_register"))
+ (original condition before r256662))
+
+ Backport from mainline
+ 2018-01-15 H.J. Lu <hongjiu lu intel com>
+
+ * config/i386/predicates.md (constant_call_address_operand):
+ Rewrite ix86_indirect_branch_register logic.
+ (sibcall_insn_operand): Likewise.
+
+Don't check ix86_indirect_branch_register for GOT operand
+
+Since GOT_memory_operand and GOT32_symbol_operand are simple pattern
+matches, don't check ix86_indirect_branch_register here. If needed,
+-mindirect-branch= will convert indirect branch via GOT slot to a call
+and return thunk.
+
+ Backport from mainline
+ 2018-01-15 H.J. Lu <hongjiu lu intel com>
+
+ * config/i386/constraints.md (Bs): Update
+ ix86_indirect_branch_register check. Don't check
+ ix86_indirect_branch_register with GOT_memory_operand.
+ (Bw): Likewise.
+ * config/i386/predicates.md (GOT_memory_operand): Don't check
+ ix86_indirect_branch_register here.
+ (GOT32_symbol_operand): Likewise.
+
+i386: Rewrite indirect_branch_operand logic
+
+ Backport from mainline
+ 2018-01-15 H.J. Lu <hongjiu lu intel com>
+
+ * config/i386/predicates.md (indirect_branch_operand): Rewrite
+ ix86_indirect_branch_register logic.
+
+Upstream-Status: Pending
+
+Signed-off-by: Juro Bystricky <juro bystricky intel com>
+
+---
+ gcc/config/i386/constraints.md | 6 ++--
+ gcc/config/i386/i386.md | 34 ++++++++++++++--------
+ gcc/config/i386/i386.opt | 4 +++
+ gcc/config/i386/predicates.md | 21 +++++++------
+ gcc/doc/invoke.texi | 6 +++-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-1.c | 2 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-2.c | 2 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-3.c | 2 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-4.c | 2 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-5.c | 2 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-6.c | 2 +-
+ gcc/testsuite/gcc.target/i386/indirect-thunk-7.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-attr-1.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-attr-2.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-attr-3.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-attr-4.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-attr-5.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-attr-6.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-attr-7.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-bnd-1.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-bnd-2.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-bnd-3.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-bnd-4.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-extern-1.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-extern-2.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-extern-3.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-extern-4.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-extern-5.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-extern-6.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-extern-7.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-inline-1.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-inline-2.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-inline-3.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-inline-4.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-inline-5.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-inline-6.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-inline-7.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-register-1.c | 22 ++++++++++++++
+ .../gcc.target/i386/indirect-thunk-register-2.c | 20 +++++++++++++
+ .../gcc.target/i386/indirect-thunk-register-3.c | 19 ++++++++++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-10.c | 2 +-
+ gcc/testsuite/gcc.target/i386/ret-thunk-11.c | 2 +-
+ gcc/testsuite/gcc.target/i386/ret-thunk-12.c | 2 +-
+ gcc/testsuite/gcc.target/i386/ret-thunk-13.c | 2 +-
+ gcc/testsuite/gcc.target/i386/ret-thunk-14.c | 2 +-
+ gcc/testsuite/gcc.target/i386/ret-thunk-15.c | 2 +-
+ gcc/testsuite/gcc.target/i386/ret-thunk-9.c | 2 +-
+ 47 files changed, 147 insertions(+), 63 deletions(-)
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c
+
+diff --git a/gcc/config/i386/constraints.md b/gcc/config/i386/constraints.md
+index 1a4c701..9204c8e 100644
+--- a/gcc/config/i386/constraints.md
++++ b/gcc/config/i386/constraints.md
+@@ -172,14 +172,16 @@
+
+ (define_constraint "Bs"
+ "@internal Sibcall memory operand."
+- (ior (and (not (match_test "TARGET_X32"))
++ (ior (and (not (match_test "ix86_indirect_branch_register"))
++ (not (match_test "TARGET_X32"))
+ (match_operand 0 "sibcall_memory_operand"))
+ (and (match_test "TARGET_X32 && Pmode == DImode")
+ (match_operand 0 "GOT_memory_operand"))))
+
+ (define_constraint "Bw"
+ "@internal Call memory operand."
+- (ior (and (not (match_test "TARGET_X32"))
++ (ior (and (not (match_test "ix86_indirect_branch_register"))
++ (not (match_test "TARGET_X32"))
+ (match_operand 0 "memory_operand"))
+ (and (match_test "TARGET_X32 && Pmode == DImode")
+ (match_operand 0 "GOT_memory_operand"))))
+diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
+index 2da671e..05a88ff 100644
+--- a/gcc/config/i386/i386.md
++++ b/gcc/config/i386/i386.md
+@@ -11805,7 +11805,7 @@
+ [(set (pc) (match_operand 0 "indirect_branch_operand"))]
+ ""
+ {
+- if (TARGET_X32)
++ if (TARGET_X32 || ix86_indirect_branch_register)
+ operands[0] = convert_memory_address (word_mode, operands[0]);
+ cfun->machine->has_local_indirect_jump = true;
+ })
+@@ -11859,7 +11859,7 @@
+ OPTAB_DIRECT);
+ }
+
+- if (TARGET_X32)
++ if (TARGET_X32 || ix86_indirect_branch_register)
+ operands[0] = convert_memory_address (word_mode, operands[0]);
+ cfun->machine->has_local_indirect_jump = true;
+ })
+@@ -12048,7 +12048,7 @@
+ [(call (mem:QI (match_operand:W 0 "memory_operand" "m"))
+ (match_operand 1))
+ (unspec [(const_int 0)] UNSPEC_PEEPSIB)]
+- "!TARGET_X32"
++ "!TARGET_X32 && !ix86_indirect_branch_register"
+ "* return ix86_output_call_insn (insn, operands[0]);"
+ [(set_attr "type" "call")])
+
+@@ -12057,7 +12057,9 @@
+ (match_operand:W 1 "memory_operand"))
+ (call (mem:QI (match_dup 0))
+ (match_operand 3))]
+- "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (1))
++ "!TARGET_X32
++ && !ix86_indirect_branch_register
++ && SIBLING_CALL_P (peep2_next_insn (1))
+ && !reg_mentioned_p (operands[0],
+ CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))"
+ [(parallel [(call (mem:QI (match_dup 1))
+@@ -12070,7 +12072,9 @@
+ (unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE)
+ (call (mem:QI (match_dup 0))
+ (match_operand 3))]
+- "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (2))
++ "!TARGET_X32
++ && !ix86_indirect_branch_register
++ && SIBLING_CALL_P (peep2_next_insn (2))
+ && !reg_mentioned_p (operands[0],
+ CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))"
+ [(unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE)
+@@ -12092,7 +12096,7 @@
+ })
+
+ (define_insn "*call_pop"
+- [(call (mem:QI (match_operand:SI 0 "call_insn_operand" "lmBz"))
++ [(call (mem:QI (match_operand:SI 0 "call_insn_operand" "lBwBz"))
+ (match_operand 1))
+ (set (reg:SI SP_REG)
+ (plus:SI (reg:SI SP_REG)
+@@ -12112,7 +12116,7 @@
+ [(set_attr "type" "call")])
+
+ (define_insn "*sibcall_pop_memory"
+- [(call (mem:QI (match_operand:SI 0 "memory_operand" "m"))
++ [(call (mem:QI (match_operand:SI 0 "memory_operand" "Bs"))
+ (match_operand 1))
+ (set (reg:SI SP_REG)
+ (plus:SI (reg:SI SP_REG)
+@@ -12166,7 +12170,9 @@
+ [(set (match_operand:W 0 "register_operand")
+ (match_operand:W 1 "memory_operand"))
+ (set (pc) (match_dup 0))]
+- "!TARGET_X32 && peep2_reg_dead_p (2, operands[0])"
++ "!TARGET_X32
++ && !ix86_indirect_branch_register
++ && peep2_reg_dead_p (2, operands[0])"
+ [(set (pc) (match_dup 1))])
+
+ ;; Call subroutine, returning value in operand 0
+@@ -12244,7 +12250,7 @@
+ (call (mem:QI (match_operand:W 1 "memory_operand" "m"))
+ (match_operand 2)))
+ (unspec [(const_int 0)] UNSPEC_PEEPSIB)]
+- "!TARGET_X32"
++ "!TARGET_X32 && !ix86_indirect_branch_register"
+ "* return ix86_output_call_insn (insn, operands[1]);"
+ [(set_attr "type" "callv")])
+
+@@ -12254,7 +12260,9 @@
+ (set (match_operand 2)
+ (call (mem:QI (match_dup 0))
+ (match_operand 3)))]
+- "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (1))
++ "!TARGET_X32
++ && !ix86_indirect_branch_register
++ && SIBLING_CALL_P (peep2_next_insn (1))
+ && !reg_mentioned_p (operands[0],
+ CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))"
+ [(parallel [(set (match_dup 2)
+@@ -12269,7 +12277,9 @@
+ (set (match_operand 2)
+ (call (mem:QI (match_dup 0))
+ (match_operand 3)))]
+- "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (2))
++ "!TARGET_X32
++ && !ix86_indirect_branch_register
++ && SIBLING_CALL_P (peep2_next_insn (2))
+ && !reg_mentioned_p (operands[0],
+ CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))"
+ [(unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE)
+@@ -12294,7 +12304,7 @@
+
+ (define_insn "*call_value_pop"
+ [(set (match_operand 0)
+- (call (mem:QI (match_operand:SI 1 "call_insn_operand" "lmBz"))
++ (call (mem:QI (match_operand:SI 1 "call_insn_operand" "lBwBz"))
+ (match_operand 2)))
+ (set (reg:SI SP_REG)
+ (plus:SI (reg:SI SP_REG)
+diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt
+index ad5916f..a97f84f 100644
+--- a/gcc/config/i386/i386.opt
++++ b/gcc/config/i386/i386.opt
+@@ -921,3 +921,7 @@ Enum(indirect_branch) String(thunk-inline) Value(indirect_branch_thunk_inline)
+
+ EnumValue
+ Enum(indirect_branch) String(thunk-extern) Value(indirect_branch_thunk_extern)
++
++mindirect-branch-register
++Target Report Var(ix86_indirect_branch_register) Init(0)
++Force indirect call and jump via register.
+diff --git a/gcc/config/i386/predicates.md b/gcc/config/i386/predicates.md
+index 93dda7b..d1f0a7d 100644
+--- a/gcc/config/i386/predicates.md
++++ b/gcc/config/i386/predicates.md
+@@ -593,7 +593,8 @@
+ ;; Test for a valid operand for indirect branch.
+ (define_predicate "indirect_branch_operand"
+ (ior (match_operand 0 "register_operand")
+- (and (not (match_test "TARGET_X32"))
++ (and (not (match_test "ix86_indirect_branch_register"))
++ (not (match_test "TARGET_X32"))
+ (match_operand 0 "memory_operand"))))
+
+ ;; Return true if OP is a memory operands that can be used in sibcalls.
+@@ -636,20 +637,22 @@
+ (ior (match_test "constant_call_address_operand
+ (op, mode == VOIDmode ? mode : Pmode)")
+ (match_operand 0 "call_register_no_elim_operand")
+- (ior (and (not (match_test "TARGET_X32"))
+- (match_operand 0 "memory_operand"))
+- (and (match_test "TARGET_X32 && Pmode == DImode")
+- (match_operand 0 "GOT_memory_operand")))))
++ (and (not (match_test "ix86_indirect_branch_register"))
++ (ior (and (not (match_test "TARGET_X32"))
++ (match_operand 0 "memory_operand"))
++ (and (match_test "TARGET_X32 && Pmode == DImode")
++ (match_operand 0 "GOT_memory_operand"))))))
+
+ ;; Similarly, but for tail calls, in which we cannot allow memory references.
+ (define_special_predicate "sibcall_insn_operand"
+ (ior (match_test "constant_call_address_operand
+ (op, mode == VOIDmode ? mode : Pmode)")
+ (match_operand 0 "register_no_elim_operand")
+- (ior (and (not (match_test "TARGET_X32"))
+- (match_operand 0 "sibcall_memory_operand"))
+- (and (match_test "TARGET_X32 && Pmode == DImode")
+- (match_operand 0 "GOT_memory_operand")))))
++ (and (not (match_test "ix86_indirect_branch_register"))
++ (ior (and (not (match_test "TARGET_X32"))
++ (match_operand 0 "sibcall_memory_operand"))
++ (and (match_test "TARGET_X32 && Pmode == DImode")
++ (match_operand 0 "GOT_memory_operand"))))))
+
+ ;; Return true if OP is a 32-bit GOT symbol operand.
+ (define_predicate "GOT32_symbol_operand"
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index fa63dc5..ad9f295 100644
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -1170,7 +1170,7 @@ See RS/6000 and PowerPC Options.
+ -mavx256-split-unaligned-load -mavx256-split-unaligned-store @gol
+ -malign-data=@var{type} -mstack-protector-guard=@var{guard} @gol
+ -mmitigate-rop -mindirect-branch=@var{choice} @gol
+--mfunction-return=@var{choice}}
++-mfunction-return=@var{choice} -mindirect-branch-register}
+
+ @emph{x86 Windows Options}
+ @gccoptlist{-mconsole -mcygwin -mno-cygwin -mdll @gol
+@@ -24241,6 +24241,10 @@ object file. You can control this behavior for a specific function by
+ using the function attribute @code{function_return}.
+ @xref{Function Attributes}.
+
++@item -mindirect-branch-register
++@opindex -mindirect-branch-register
++Force indirect call and jump via register.
++
+ @end table
+
+ These @samp{-m} switches are supported in addition to the above
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
+index e365ef5..60d0988 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic"
} */
+
+ typedef void (*dispatch_t)(long offset);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
+index 05a51ad..aac7516 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic"
} */
+
+ typedef void (*dispatch_t)(long offset);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
+index 3c0d4c3..9e24a38 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register
-mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
+index 14d4ef6..127b5d9 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register
-mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
+index b4836c3..fcaa18d 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt
-mindirect-branch=thunk" } */
+
+ extern void bar (void);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
+index 1f06bd1..e464928 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register
-mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */
+
+ extern void bar (void);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
+index bc6b47a..17c2d0f 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic"
} */
+
+ void func0 (void);
+ void func1 (void);
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
+index 2257be3..9194ccf 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
+index e9cfdc5..e51f261 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
+index f938db0..4aeec18 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
+index 4e58599..ac0e599 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
+index b8d5024..573cf1e 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
+index 455adab..b2b37fc 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
+index 4595b84..4a43e19 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+
+ void func0 (void);
+ void func1 (void);
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
+index 5e3e118..ac84ab6 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target { ! x32 } } } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic"
} */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk
-fcheck-pointer-bounds -mmpx -fno-pic" } */
+
+ void (*dispatch) (char *);
+ char buf[10];
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
+index 2801aa4..ce655e8 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target { ! x32 } } } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic"
} */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk
-fcheck-pointer-bounds -mmpx -fno-pic" } */
+
+ void (*dispatch) (char *);
+ char buf[10];
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
+index 70b4fb3..d34485a 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic
-fno-plt" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk
-fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
+
+ void bar (char *);
+ char buf[10];
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
+index 3baf03e..0e19830 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic
-fno-plt" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep
-mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
+
+ void bar (char *);
+ char buf[10];
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
+index edeb264..579441f 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern
-fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
+index 1d00413..c92e6f2 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern
-fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
+index 06ebf1c..d9964c2 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern
-fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
+index 1c8f944..d4dca4d 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern
-fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
+index 21740ac..5c07e02 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt
-mindirect-branch=thunk-extern" } */
+
+ extern void bar (void);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
+index a77c1f4..3eb4406 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt
-mindirect-branch=thunk-extern" } */
+
+ extern void bar (void);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
+index 86e9fd1..aece938 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern
-fno-pic" } */
+
+ void func0 (void);
+ void func1 (void);
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
+index 3ecde87..3aba5e8 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline
-fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
+index df32a19..0f0181d 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline
-fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
+index 9540996..2eef6f3 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline
-fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
+index f3db6e2..e825a10 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline
-fno-pic" } */
+
+ typedef void (*dispatch_t)(long offset);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
+index 0f687c3..c6d77e1 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt
-mindirect-branch=thunk-inline" } */
+
+ extern void bar (void);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
+index b27c6fc..6454827 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile { target *-*-linux* } } */
+-/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt
-mindirect-branch=thunk-inline" } */
+
+ extern void bar (void);
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
+index 764a375..c67066c 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline
-fno-pic" } */
+
+ void func0 (void);
+ void func1 (void);
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c
+new file mode 100644
+index 0000000..7d396a3
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c
+@@ -0,0 +1,22 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk -mindirect-branch-register -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++void
++male_indirect_jump (long offset)
++{
++ dispatch(offset);
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "mov\[ \t\](%eax|%rax), \\((%esp|%rsp)\\)" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler-not "push(?:l|q)\[ \t\]*_?dispatch" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk\n" } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk_bnd\n" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c
+new file mode 100644
+index 0000000..e7e616b
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c
+@@ -0,0 +1,20 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-inline -mindirect-branch-register -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++void
++male_indirect_jump (long offset)
++{
++ dispatch(offset);
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "mov\[ \t\](%eax|%rax), \\((%esp|%rsp)\\)" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler-not "push(?:l|q)\[ \t\]*_?dispatch" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
++/* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c
+new file mode 100644
+index 0000000..5320e92
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c
+@@ -0,0 +1,19 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=thunk-extern -mindirect-branch-register -fno-pic" } */
++
++typedef void (*dispatch_t)(long offset);
++
++dispatch_t dispatch;
++
++void
++male_indirect_jump (long offset)
++{
++ dispatch(offset);
++}
++
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
++/* { dg-final { scan-assembler-not "push(?:l|q)\[ \t\]*_?dispatch" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
++/* { dg-final { scan-assembler-not {\t(pause|pause|nop)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-10.c b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
+index 3a6727b..e6fea84 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=thunk-inline -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register
-mfunction-return=thunk-inline -mindirect-branch=thunk -fno-pic" } */
+
+ extern void (*bar) (void);
+
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-11.c b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
+index b8f6818..e239ec4 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=thunk-extern -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register
-mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=thunk-extern
-mindirect-branch=thunk -fno-pic" } */
+
+ extern void (*bar) (void);
+
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-12.c b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
+index 01b0a02..fa31813 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register
-mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk
-fno-pic" } */
+
+ extern void (*bar) (void);
+
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-13.c b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
+index 4b497b5..fd5b41f 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline
-fno-pic" } */
+
+ extern void (*bar) (void);
+ extern int foo (void) __attribute__ ((function_return("thunk")));
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-14.c b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
+index 4ae4c44..d606373 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern
-fno-pic" } */
+
+ extern void (*bar) (void);
+
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-15.c b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
+index 5b5bc76..75e45e2 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=keep -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register
-mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=keep
-fno-pic" } */
+
+ extern void (*bar) (void);
+
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
+index fa24a1f..d1db41c 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O2 -mfunction-return=thunk -mindirect-branch=thunk -fno-pic" } */
++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=thunk
-mindirect-branch=thunk -fno-pic" } */
+
+ extern void (*bar) (void);
+
+--
+2.7.4
+
diff --git a/meta/recipes-devtools/gcc/gcc-6.4/backport/0007-x86-Add-V-register-operand-modifier.patch
b/meta/recipes-devtools/gcc/gcc-6.4/backport/0007-x86-Add-V-register-operand-modifier.patch
new file mode 100644
index 0000000..cec84fe
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-6.4/backport/0007-x86-Add-V-register-operand-modifier.patch
@@ -0,0 +1,139 @@
+From 8f0efd692eb8db06d6c00b759c872bd2170b7f7b Mon Sep 17 00:00:00 2001
+From: "H.J. Lu" <hjl tools gmail com>
+Date: Sat, 6 Jan 2018 22:29:56 -0800
+Subject: [PATCH 07/12] x86: Add 'V' register operand modifier
+
+Add 'V', a special modifier which prints the name of the full integer
+register without '%'. For
+
+extern void (*func_p) (void);
+
+void
+foo (void)
+{
+ asm ("call __x86_indirect_thunk_%V0" : : "a" (func_p));
+}
+
+it generates:
+
+foo:
+ movq func_p(%rip), %rax
+ call __x86_indirect_thunk_rax
+ ret
+
+gcc/
+
+ Backport from mainline
+ 2018-01-14 H.J. Lu <hongjiu lu intel com>
+
+ * config/i386/i386.c (print_reg): Print the name of the full
+ integer register without '%'.
+ (ix86_print_operand): Handle 'V'.
+ * doc/extend.texi: Document 'V' modifier.
+
+gcc/testsuite/
+
+ Backport from mainline
+ 2018-01-14 H.J. Lu <hongjiu lu intel com>
+
+ * gcc.target/i386/indirect-thunk-register-4.c: New test.
+
+Upstream-Status: Pending
+
+Signed-off-by: Juro Bystricky <juro bystricky intel com>
+
+---
+ gcc/config/i386/i386.c | 13 ++++++++++++-
+ gcc/doc/extend.texi | 3 +++
+ gcc/testsuite/gcc.target/i386/indirect-thunk-register-4.c | 13 +++++++++++++
+ 3 files changed, 28 insertions(+), 1 deletion(-)
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-register-4.c
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 34e26a3..eeca7e5 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -16869,6 +16869,7 @@ put_condition_code (enum rtx_code code, machine_mode mode, bool reverse,
+ If CODE is 'h', pretend the reg is the 'high' byte register.
+ If CODE is 'y', print "st(0)" instead of "st", if the reg is stack op.
+ If CODE is 'd', duplicate the operand for AVX instruction.
++ If CODE is 'V', print naked full integer register name without %.
+ */
+
+ void
+@@ -16879,7 +16880,7 @@ print_reg (rtx x, int code, FILE *file)
+ unsigned int regno;
+ bool duplicated;
+
+- if (ASSEMBLER_DIALECT == ASM_ATT)
++ if (ASSEMBLER_DIALECT == ASM_ATT && code != 'V')
+ putc ('%', file);
+
+ if (x == pc_rtx)
+@@ -16922,6 +16923,14 @@ print_reg (rtx x, int code, FILE *file)
+ && regno != FPSR_REG
+ && regno != FPCR_REG);
+
++ if (code == 'V')
++ {
++ if (GENERAL_REGNO_P (regno))
++ msize = GET_MODE_SIZE (word_mode);
++ else
++ error ("'V' modifier on non-integer register");
++ }
++
+ duplicated = code == 'd' && TARGET_AVX;
+
+ switch (msize)
+@@ -17035,6 +17044,7 @@ print_reg (rtx x, int code, FILE *file)
+ & -- print some in-use local-dynamic symbol name.
+ H -- print a memory address offset by 8; used for sse high-parts
+ Y -- print condition for XOP pcom* instruction.
++ V -- print naked full integer register name without %.
+ + -- print a branch hint as 'cs' or 'ds' prefix
+ ; -- print a semicolon (after prefixes due to bug in older gas).
+ ~ -- print "i" if TARGET_AVX2, "f" otherwise.
+@@ -17259,6 +17269,7 @@ ix86_print_operand (FILE *file, rtx x, int code)
+ case 'X':
+ case 'P':
+ case 'p':
++ case 'V':
+ break;
+
+ case 's':
+diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
+index 2cb6bd1..76ba1d4 100644
+--- a/gcc/doc/extend.texi
++++ b/gcc/doc/extend.texi
+@@ -8511,6 +8511,9 @@ The table below shows the list of supported modifiers and their effects.
+ @tab @code{2}
+ @end multitable
+
++@code{V} is a special modifier which prints the name of the full integer
++register without @code{%}.
++
+ @anchor{x86floatingpointasmoperands}
+ @subsubsection x86 Floating-Point @code{asm} Operands
+
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-register-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-4.c
+new file mode 100644
+index 0000000..f0cd9b7
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-4.c
+@@ -0,0 +1,13 @@
++/* { dg-do compile } */
++/* { dg-options "-O2 -mindirect-branch=keep -fno-pic" } */
++
++extern void (*func_p) (void);
++
++void
++foo (void)
++{
++ asm("call __x86_indirect_thunk_%V0" : : "a" (func_p));
++}
++
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_eax" { target ia32 } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_rax" { target { ! ia32 } } } } */
+--
+2.7.4
+
diff --git
a/meta/recipes-devtools/gcc/gcc-6.4/backport/0008-x86-Disallow-mindirect-branch-mfunction-return-with-.patch
b/meta/recipes-devtools/gcc/gcc-6.4/backport/0008-x86-Disallow-mindirect-branch-mfunction-return-with-.patch
new file mode 100644
index 0000000..d8a5810
--- /dev/null
+++
b/meta/recipes-devtools/gcc/gcc-6.4/backport/0008-x86-Disallow-mindirect-branch-mfunction-return-with-.patch
@@ -0,0 +1,304 @@
+From 8e0d9bf93e2e2ec03c544572aef4b03a8e7090f3 Mon Sep 17 00:00:00 2001
+From: "H.J. Lu" <hjl tools gmail com>
+Date: Sat, 13 Jan 2018 18:01:54 -0800
+Subject: [PATCH 08/12] x86: Disallow -mindirect-branch=/-mfunction-return=
+ with -mcmodel=large
+
+Since the thunk function may not be reachable in large code model,
+-mcmodel=large is incompatible with -mindirect-branch=thunk,
+-mindirect-branch=thunk-extern, -mfunction-return=thunk and
+-mfunction-return=thunk-extern. Issue an error when they are used with
+-mcmodel=large.
+
+gcc/
+
+ Backport from mainline
+ 2018-01-14 H.J. Lu <hongjiu lu intel com>
+
+ * config/i386/i386.c (ix86_set_indirect_branch_type): Disallow
+ -mcmodel=large with -mindirect-branch=thunk,
+ -mindirect-branch=thunk-extern, -mfunction-return=thunk and
+ -mfunction-return=thunk-extern.
+ * doc/invoke.texi: Document -mcmodel=large is incompatible with
+ -mindirect-branch=thunk, -mindirect-branch=thunk-extern,
+ -mfunction-return=thunk and -mfunction-return=thunk-extern.
+
+gcc/testsuite/
+
+ Backport from mainline
+ 2018-01-14 H.J. Lu <hongjiu lu intel com>
+
+ * gcc.target/i386/indirect-thunk-10.c: New test.
+ * gcc.target/i386/indirect-thunk-8.c: Likewise.
+ * gcc.target/i386/indirect-thunk-9.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-10.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-11.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-9.c: Likewise.
+ * gcc.target/i386/ret-thunk-17.c: Likewise.
+ * gcc.target/i386/ret-thunk-18.c: Likewise.
+ * gcc.target/i386/ret-thunk-19.c: Likewise.
+ * gcc.target/i386/ret-thunk-20.c: Likewise.
+ * gcc.target/i386/ret-thunk-21.c: Likewise.
+
+Upstream-Status: Pending
+
+Signed-off-by: Juro Bystricky <juro bystricky intel com>
+
+---
+ gcc/config/i386/i386.c | 26 ++++++++++++++++++++++
+ gcc/doc/invoke.texi | 11 +++++++++
+ gcc/testsuite/gcc.target/i386/indirect-thunk-10.c | 7 ++++++
+ gcc/testsuite/gcc.target/i386/indirect-thunk-8.c | 7 ++++++
+ gcc/testsuite/gcc.target/i386/indirect-thunk-9.c | 7 ++++++
+ .../gcc.target/i386/indirect-thunk-attr-10.c | 9 ++++++++
+ .../gcc.target/i386/indirect-thunk-attr-11.c | 9 ++++++++
+ .../gcc.target/i386/indirect-thunk-attr-9.c | 9 ++++++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-17.c | 7 ++++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-18.c | 8 +++++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-19.c | 8 +++++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-20.c | 9 ++++++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-21.c | 9 ++++++++
+ 13 files changed, 126 insertions(+)
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-10.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-8.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-9.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-10.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-11.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/indirect-thunk-attr-9.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-17.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-18.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-19.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-20.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-21.c
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index eeca7e5..9c038be 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -6389,6 +6389,19 @@ ix86_set_indirect_branch_type (tree fndecl)
+ }
+ else
+ cfun->machine->indirect_branch_type = ix86_indirect_branch;
++
++ /* -mcmodel=large is not compatible with -mindirect-branch=thunk
++ nor -mindirect-branch=thunk-extern. */
++ if ((ix86_cmodel == CM_LARGE || ix86_cmodel == CM_LARGE_PIC)
++ && ((cfun->machine->indirect_branch_type
++ == indirect_branch_thunk_extern)
++ || (cfun->machine->indirect_branch_type
++ == indirect_branch_thunk)))
++ error ("%<-mindirect-branch=%s%> and %<-mcmodel=large%> are not "
++ "compatible",
++ ((cfun->machine->indirect_branch_type
++ == indirect_branch_thunk_extern)
++ ? "thunk-extern" : "thunk"));
+ }
+
+ if (cfun->machine->function_return_type == indirect_branch_unset)
+@@ -6414,6 +6427,19 @@ ix86_set_indirect_branch_type (tree fndecl)
+ }
+ else
+ cfun->machine->function_return_type = ix86_function_return;
++
++ /* -mcmodel=large is not compatible with -mfunction-return=thunk
++ nor -mfunction-return=thunk-extern. */
++ if ((ix86_cmodel == CM_LARGE || ix86_cmodel == CM_LARGE_PIC)
++ && ((cfun->machine->function_return_type
++ == indirect_branch_thunk_extern)
++ || (cfun->machine->function_return_type
++ == indirect_branch_thunk)))
++ error ("%<-mfunction-return=%s%> and %<-mcmodel=large%> are not "
++ "compatible",
++ ((cfun->machine->function_return_type
++ == indirect_branch_thunk_extern)
++ ? "thunk-extern" : "thunk"));
+ }
+ }
+
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index ad9f295..48e827f 100644
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -24230,6 +24230,11 @@ to external call and return thunk provided in a separate object file.
+ You can control this behavior for a specific function by using the
+ function attribute @code{indirect_branch}. @xref{Function Attributes}.
+
++Note that @option{-mcmodel=large} is incompatible with
++@option{-mindirect-branch=thunk} nor
++@option{-mindirect-branch=thunk-extern} since the thunk function may
++not be reachable in large code model.
++
+ @item -mfunction-return=@var{choice}
+ @opindex -mfunction-return
+ Convert function return with @var{choice}. The default is @samp{keep},
+@@ -24241,6 +24246,12 @@ object file. You can control this behavior for a specific function by
+ using the function attribute @code{function_return}.
+ @xref{Function Attributes}.
+
++Note that @option{-mcmodel=large} is incompatible with
++@option{-mfunction-return=thunk} nor
++@option{-mfunction-return=thunk-extern} since the thunk function may
++not be reachable in large code model.
++
++
+ @item -mindirect-branch-register
+ @opindex -mindirect-branch-register
+ Force indirect call and jump via register.
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-10.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-10.c
+new file mode 100644
+index 0000000..a0674bd
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-10.c
+@@ -0,0 +1,7 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mindirect-branch=thunk-inline -mfunction-return=keep -mcmodel=large" } */
++
++void
++bar (void)
++{
++}
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-8.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-8.c
+new file mode 100644
+index 0000000..7a80a89
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-8.c
+@@ -0,0 +1,7 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mindirect-branch=thunk -mfunction-return=keep -mcmodel=large" } */
++
++void
++bar (void)
++{ /* { dg-error "'-mindirect-branch=thunk' and '-mcmodel=large' are not compatible" } */
++}
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-9.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-9.c
+new file mode 100644
+index 0000000..d4d45c5
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-9.c
+@@ -0,0 +1,7 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mindirect-branch=thunk-extern -mfunction-return=keep -mcmodel=large" } */
++
++void
++bar (void)
++{ /* { dg-error "'-mindirect-branch=thunk-extern' and '-mcmodel=large' are not compatible" } */
++}
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-10.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-10.c
+new file mode 100644
+index 0000000..3a2aead
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-10.c
+@@ -0,0 +1,9 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mindirect-branch=keep -mfunction-return=keep -mcmodel=large" } */
++/* { dg-additional-options "-fPIC" { target fpic } } */
++
++__attribute__ ((indirect_branch("thunk-extern")))
++void
++bar (void)
++{ /* { dg-error "'-mindirect-branch=thunk-extern' and '-mcmodel=large' are not compatible" } */
++}
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-11.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-11.c
+new file mode 100644
+index 0000000..8e52f03
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-11.c
+@@ -0,0 +1,9 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mindirect-branch=keep -mfunction-return=keep -mcmodel=large" } */
++/* { dg-additional-options "-fPIC" { target fpic } } */
++
++__attribute__ ((indirect_branch("thunk-inline")))
++void
++bar (void)
++{
++}
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-9.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-9.c
+new file mode 100644
+index 0000000..bdaa4f6
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-9.c
+@@ -0,0 +1,9 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mindirect-branch=keep -mfunction-return=keep -mcmodel=large" } */
++/* { dg-additional-options "-fPIC" { target fpic } } */
++
++__attribute__ ((indirect_branch("thunk")))
++void
++bar (void)
++{ /* { dg-error "'-mindirect-branch=thunk' and '-mcmodel=large' are not compatible" } */
++}
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-17.c b/gcc/testsuite/gcc.target/i386/ret-thunk-17.c
+new file mode 100644
+index 0000000..0605e2c
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-17.c
+@@ -0,0 +1,7 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mfunction-return=thunk -mindirect-branch=keep -mcmodel=large" } */
++
++void
++bar (void)
++{ /* { dg-error "'-mfunction-return=thunk' and '-mcmodel=large' are not compatible" } */
++}
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-18.c b/gcc/testsuite/gcc.target/i386/ret-thunk-18.c
+new file mode 100644
+index 0000000..307019d
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-18.c
+@@ -0,0 +1,8 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mfunction-return=thunk-extern -mindirect-branch=keep -mcmodel=large" } */
++/* { dg-additional-options "-fPIC" { target fpic } } */
++
++void
++bar (void)
++{ /* { dg-error "'-mfunction-return=thunk-extern' and '-mcmodel=large' are not compatible" } */
++}
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-19.c b/gcc/testsuite/gcc.target/i386/ret-thunk-19.c
+new file mode 100644
+index 0000000..772617f
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-19.c
+@@ -0,0 +1,8 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=keep -mcmodel=large" } */
++
++__attribute__ ((function_return("thunk")))
++void
++bar (void)
++{ /* { dg-error "'-mfunction-return=thunk' and '-mcmodel=large' are not compatible" } */
++}
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-20.c b/gcc/testsuite/gcc.target/i386/ret-thunk-20.c
+new file mode 100644
+index 0000000..1e9f9bd
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-20.c
+@@ -0,0 +1,9 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=keep -mcmodel=large" } */
++/* { dg-additional-options "-fPIC" { target fpic } } */
++
++__attribute__ ((function_return("thunk-extern")))
++void
++bar (void)
++{ /* { dg-error "'-mfunction-return=thunk-extern' and '-mcmodel=large' are not compatible" } */
++}
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-21.c b/gcc/testsuite/gcc.target/i386/ret-thunk-21.c
+new file mode 100644
+index 0000000..eea07f7
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-21.c
+@@ -0,0 +1,9 @@
++/* { dg-do compile { target { lp64 } } } */
++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=keep -mcmodel=large" } */
++/* { dg-additional-options "-fPIC" { target fpic } } */
++
++__attribute__ ((function_return("thunk-inline")))
++void
++bar (void)
++{
++}
+--
+2.7.4
+
diff --git
a/meta/recipes-devtools/gcc/gcc-6.4/backport/0009-Use-INVALID_REGNUM-in-indirect-thunk-processing.patch
b/meta/recipes-devtools/gcc/gcc-6.4/backport/0009-Use-INVALID_REGNUM-in-indirect-thunk-processing.patch
new file mode 100644
index 0000000..7364a2c
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-6.4/backport/0009-Use-INVALID_REGNUM-in-indirect-thunk-processing.patch
@@ -0,0 +1,126 @@
+From 3eff2adada2b1667b0e76496fa559e0c248ecd84 Mon Sep 17 00:00:00 2001
+From: uros <uros@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Thu, 25 Jan 2018 19:39:01 +0000
+Subject: [PATCH 09/12] Use INVALID_REGNUM in indirect thunk processing
+
+ Backport from mainline
+ 2018-01-17 Uros Bizjak <ubizjak gmail com>
+
+ * config/i386/i386.c (indirect_thunk_name): Declare regno
+ as unsigned int. Compare regno with INVALID_REGNUM.
+ (output_indirect_thunk): Ditto.
+ (output_indirect_thunk_function): Ditto.
+ (ix86_code_end): Declare regno as unsigned int. Use INVALID_REGNUM
+ in the call to output_indirect_thunk_function.
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-7-branch@257067 138bc75d-0d04-0410-961f-82ee72b054a4
+
+Upstream-Status: Pending
+
+Signed-off-by: Juro Bystricky <juro bystricky intel com>
+
+---
+ gcc/config/i386/i386.c | 30 +++++++++++++++---------------
+ 1 file changed, 15 insertions(+), 15 deletions(-)
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 9c038be..4012657 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -11087,16 +11087,16 @@ static int indirect_thunks_bnd_used;
+ /* Fills in the label name that should be used for the indirect thunk. */
+
+ static void
+-indirect_thunk_name (char name[32], int regno, bool need_bnd_p,
+- bool ret_p)
++indirect_thunk_name (char name[32], unsigned int regno,
++ bool need_bnd_p, bool ret_p)
+ {
+- if (regno >= 0 && ret_p)
++ if (regno != INVALID_REGNUM && ret_p)
+ gcc_unreachable ();
+
+ if (USE_HIDDEN_LINKONCE)
+ {
+ const char *bnd = need_bnd_p ? "_bnd" : "";
+- if (regno >= 0)
++ if (regno != INVALID_REGNUM)
+ {
+ const char *reg_prefix;
+ if (LEGACY_INT_REGNO_P (regno))
+@@ -11114,7 +11114,7 @@ indirect_thunk_name (char name[32], int regno, bool need_bnd_p,
+ }
+ else
+ {
+- if (regno >= 0)
++ if (regno != INVALID_REGNUM)
+ {
+ if (need_bnd_p)
+ ASM_GENERATE_INTERNAL_LABEL (name, "LITBR", regno);
+@@ -11166,7 +11166,7 @@ indirect_thunk_name (char name[32], int regno, bool need_bnd_p,
+ */
+
+ static void
+-output_indirect_thunk (bool need_bnd_p, int regno)
++output_indirect_thunk (bool need_bnd_p, unsigned int regno)
+ {
+ char indirectlabel1[32];
+ char indirectlabel2[32];
+@@ -11196,7 +11196,7 @@ output_indirect_thunk (bool need_bnd_p, int regno)
+
+ ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel2);
+
+- if (regno >= 0)
++ if (regno != INVALID_REGNUM)
+ {
+ /* MOV. */
+ rtx xops[2];
+@@ -11220,12 +11220,12 @@ output_indirect_thunk (bool need_bnd_p, int regno)
+ }
+
+ /* Output a funtion with a call and return thunk for indirect branch.
+- If BND_P is true, the BND prefix is needed. If REGNO != -1, the
+- function address is in REGNO. Otherwise, the function address is
++ If BND_P is true, the BND prefix is needed. If REGNO != INVALID_REGNUM,
++ the function address is in REGNO. Otherwise, the function address is
+ on the top of stack. */
+
+ static void
+-output_indirect_thunk_function (bool need_bnd_p, int regno)
++output_indirect_thunk_function (bool need_bnd_p, unsigned int regno)
+ {
+ char name[32];
+ tree decl;
+@@ -11274,7 +11274,7 @@ output_indirect_thunk_function (bool need_bnd_p, int regno)
+ ASM_OUTPUT_LABEL (asm_out_file, name);
+ }
+
+- if (regno < 0)
++ if (regno == INVALID_REGNUM)
+ {
+ /* Create alias for __x86.return_thunk/__x86.return_thunk_bnd. */
+ char alias[32];
+@@ -11348,16 +11348,16 @@ static void
+ ix86_code_end (void)
+ {
+ rtx xops[2];
+- int regno;
++ unsigned int regno;
+
+ if (indirect_thunk_needed)
+- output_indirect_thunk_function (false, -1);
++ output_indirect_thunk_function (false, INVALID_REGNUM);
+ if (indirect_thunk_bnd_needed)
+- output_indirect_thunk_function (true, -1);
++ output_indirect_thunk_function (true, INVALID_REGNUM);
+
+ for (regno = FIRST_REX_INT_REG; regno <= LAST_REX_INT_REG; regno++)
+ {
+- int i = regno - FIRST_REX_INT_REG + LAST_INT_REG + 1;
++ unsigned int i = regno - FIRST_REX_INT_REG + LAST_INT_REG + 1;
+ if ((indirect_thunks_used & (1 << i)))
+ output_indirect_thunk_function (false, regno);
+
+--
+2.7.4
+
diff --git
a/meta/recipes-devtools/gcc/gcc-6.4/backport/0010-i386-Pass-INVALID_REGNUM-as-invalid-register-number.patch
b/meta/recipes-devtools/gcc/gcc-6.4/backport/0010-i386-Pass-INVALID_REGNUM-as-invalid-register-number.patch
new file mode 100644
index 0000000..080d741
--- /dev/null
+++
b/meta/recipes-devtools/gcc/gcc-6.4/backport/0010-i386-Pass-INVALID_REGNUM-as-invalid-register-number.patch
@@ -0,0 +1,46 @@
+From c4300d9ad683e693c90d02d4f1b13183bf2d4acc Mon Sep 17 00:00:00 2001
+From: hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Fri, 2 Feb 2018 16:47:02 +0000
+Subject: [PATCH 10/12] i386: Pass INVALID_REGNUM as invalid register number
+
+ Backport from mainline
+ * config/i386/i386.c (ix86_output_function_return): Pass
+ INVALID_REGNUM, instead of -1, as invalid register number to
+ indirect_thunk_name and output_indirect_thunk.
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-7-branch@257341 138bc75d-0d04-0410-961f-82ee72b054a4
+
+Upstream-Status: Pending
+
+Signed-off-by: Juro Bystricky <juro bystricky intel com>
+
+---
+ gcc/config/i386/i386.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 4012657..66502ee 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -28056,7 +28056,8 @@ ix86_output_function_return (bool long_p)
+ {
+ bool need_thunk = (cfun->machine->function_return_type
+ == indirect_branch_thunk);
+- indirect_thunk_name (thunk_name, -1, need_bnd_p, true);
++ indirect_thunk_name (thunk_name, INVALID_REGNUM, need_bnd_p,
++ true);
+ if (need_bnd_p)
+ {
+ indirect_thunk_bnd_needed |= need_thunk;
+@@ -28069,7 +28070,7 @@ ix86_output_function_return (bool long_p)
+ }
+ }
+ else
+- output_indirect_thunk (need_bnd_p, -1);
++ output_indirect_thunk (need_bnd_p, INVALID_REGNUM);
+
+ return "";
+ }
+--
+2.7.4
+
diff --git
a/meta/recipes-devtools/gcc/gcc-6.4/backport/0011-i386-Update-mfunction-return-for-return-with-pop.patch
b/meta/recipes-devtools/gcc/gcc-6.4/backport/0011-i386-Update-mfunction-return-for-return-with-pop.patch
new file mode 100644
index 0000000..3b036fb
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-6.4/backport/0011-i386-Update-mfunction-return-for-return-with-pop.patch
@@ -0,0 +1,453 @@
+From b3a2269c7884378a9afd394ac7e669aab0443b57 Mon Sep 17 00:00:00 2001
+From: hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Mon, 26 Feb 2018 15:29:30 +0000
+Subject: [PATCH 11/12] i386: Update -mfunction-return= for return with pop
+
+When -mfunction-return= is used, simple_return_pop_internal should pop
+return address into ECX register, adjust stack by bytes to pop from stack
+and jump to the return thunk via ECX register.
+
+Revision 257992 removed the bool argument from ix86_output_indirect_jmp.
+Update comments to reflect it.
+
+Tested on i686 and x86-64.
+
+ Backport from mainline
+ * config/i386/i386.c (ix86_output_indirect_jmp): Update comments.
+
+ PR target/84530
+ * config/i386/i386-protos.h (ix86_output_indirect_jmp): Remove
+ the bool argument.
+ (ix86_output_indirect_function_return): New prototype.
+ (ix86_split_simple_return_pop_internal): Likewise.
+ * config/i386/i386.c (indirect_return_via_cx): New.
+ (indirect_return_via_cx_bnd): Likewise.
+ (indirect_thunk_name): Handle return va CX_REG.
+ (output_indirect_thunk_function): Create alias for
+ __x86_return_thunk_[re]cx and __x86_return_thunk_[re]cx_bnd.
+ (ix86_output_indirect_jmp): Remove the bool argument.
+ (ix86_output_indirect_function_return): New function.
+ (ix86_split_simple_return_pop_internal): Likewise.
+ * config/i386/i386.md (*indirect_jump): Don't pass false
+ to ix86_output_indirect_jmp.
+ (*tablejump_1): Likewise.
+ (simple_return_pop_internal): Change it to define_insn_and_split.
+ Call ix86_split_simple_return_pop_internal to split it for
+ -mfunction-return=.
+ (simple_return_indirect_internal): Call
+ ix86_output_indirect_function_return instead of
+ ix86_output_indirect_jmp.
+
+gcc/testsuite/
+
+ Backport from mainline
+ PR target/84530
+ * gcc.target/i386/ret-thunk-22.c: New test.
+ * gcc.target/i386/ret-thunk-23.c: Likewise.
+ * gcc.target/i386/ret-thunk-24.c: Likewise.
+ * gcc.target/i386/ret-thunk-25.c: Likewise.
+ * gcc.target/i386/ret-thunk-26.c: Likewise.
+
+Upstream-Status: Pending
+
+Signed-off-by: Juro Bystricky <juro bystricky intel com>
+
+---
+ gcc/config/i386/i386-protos.h | 4 +-
+ gcc/config/i386/i386.c | 127 +++++++++++++++++++++++----
+ gcc/config/i386/i386.md | 11 ++-
+ gcc/testsuite/gcc.target/i386/ret-thunk-22.c | 15 ++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-23.c | 15 ++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-24.c | 15 ++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-25.c | 15 ++++
+ gcc/testsuite/gcc.target/i386/ret-thunk-26.c | 40 +++++++++
+ 8 files changed, 222 insertions(+), 20 deletions(-)
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-22.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-23.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-24.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-25.c
+ create mode 100644 gcc/testsuite/gcc.target/i386/ret-thunk-26.c
+
+diff --git a/gcc/config/i386/i386-protos.h b/gcc/config/i386/i386-protos.h
+index 620d70e..c7a0ccb5 100644
+--- a/gcc/config/i386/i386-protos.h
++++ b/gcc/config/i386/i386-protos.h
+@@ -311,8 +311,10 @@ extern enum attr_cpu ix86_schedule;
+ #endif
+
+ extern const char * ix86_output_call_insn (rtx_insn *insn, rtx call_op);
+-extern const char * ix86_output_indirect_jmp (rtx call_op, bool ret_p);
++extern const char * ix86_output_indirect_jmp (rtx call_op);
+ extern const char * ix86_output_function_return (bool long_p);
++extern const char * ix86_output_indirect_function_return (rtx ret_op);
++extern void ix86_split_simple_return_pop_internal (rtx);
+ extern bool ix86_operands_ok_for_move_multiple (rtx *operands, bool load,
+ enum machine_mode mode);
+
+diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
+index 66502ee..21c3c18 100644
+--- a/gcc/config/i386/i386.c
++++ b/gcc/config/i386/i386.c
+@@ -11080,6 +11080,12 @@ static int indirect_thunks_used;
+ by call and return thunks functions with the BND prefix. */
+ static int indirect_thunks_bnd_used;
+
++/* True if return thunk function via CX is needed. */
++static bool indirect_return_via_cx;
++/* True if return thunk function via CX with the BND prefix is
++ needed. */
++static bool indirect_return_via_cx_bnd;
++
+ #ifndef INDIRECT_LABEL
+ # define INDIRECT_LABEL "LIND"
+ #endif
+@@ -11090,12 +11096,13 @@ static void
+ indirect_thunk_name (char name[32], unsigned int regno,
+ bool need_bnd_p, bool ret_p)
+ {
+- if (regno != INVALID_REGNUM && ret_p)
++ if (regno != INVALID_REGNUM && regno != CX_REG && ret_p)
+ gcc_unreachable ();
+
+ if (USE_HIDDEN_LINKONCE)
+ {
+ const char *bnd = need_bnd_p ? "_bnd" : "";
++ const char *ret = ret_p ? "return" : "indirect";
+ if (regno != INVALID_REGNUM)
+ {
+ const char *reg_prefix;
+@@ -11103,14 +11110,11 @@ indirect_thunk_name (char name[32], unsigned int regno,
+ reg_prefix = TARGET_64BIT ? "r" : "e";
+ else
+ reg_prefix = "";
+- sprintf (name, "__x86_indirect_thunk%s_%s%s",
+- bnd, reg_prefix, reg_names[regno]);
++ sprintf (name, "__x86_%s_thunk%s_%s%s",
++ ret, bnd, reg_prefix, reg_names[regno]);
+ }
+ else
+- {
+- const char *ret = ret_p ? "return" : "indirect";
+- sprintf (name, "__x86_%s_thunk%s", ret, bnd);
+- }
++ sprintf (name, "__x86_%s_thunk%s", ret, bnd);
+ }
+ else
+ {
+@@ -11274,9 +11278,23 @@ output_indirect_thunk_function (bool need_bnd_p, unsigned int regno)
+ ASM_OUTPUT_LABEL (asm_out_file, name);
+ }
+
++ /* Create alias for __x86_return_thunk/__x86_return_thunk_bnd or
++ __x86_return_thunk_ecx/__x86_return_thunk_ecx_bnd. */
++ bool need_alias;
+ if (regno == INVALID_REGNUM)
++ need_alias = true;
++ else if (regno == CX_REG)
++ {
++ if (need_bnd_p)
++ need_alias = indirect_return_via_cx_bnd;
++ else
++ need_alias = indirect_return_via_cx;
++ }
++ else
++ need_alias = false;
++
++ if (need_alias)
+ {
+- /* Create alias for __x86.return_thunk/__x86.return_thunk_bnd. */
+ char alias[32];
+
+ indirect_thunk_name (alias, regno, need_bnd_p, true);
+@@ -28019,18 +28037,17 @@ ix86_output_indirect_branch (rtx call_op, const char *xasm,
+ else
+ ix86_output_indirect_branch_via_push (call_op, xasm, sibcall_p);
+ }
+-/* Output indirect jump. CALL_OP is the jump target. Jump is a
+- function return if RET_P is true. */
++
++/* Output indirect jump. CALL_OP is the jump target. */
+
+ const char *
+-ix86_output_indirect_jmp (rtx call_op, bool ret_p)
++ix86_output_indirect_jmp (rtx call_op)
+ {
+ if (cfun->machine->indirect_branch_type != indirect_branch_keep)
+ {
+- /* We can't have red-zone if this isn't a function return since
+- "call" in the indirect thunk pushes the return address onto
+- stack, destroying red-zone. */
+- if (!ret_p && ix86_red_zone_size != 0)
++ /* We can't have red-zone since "call" in the indirect thunk
++ pushes the return address onto stack, destroying red-zone. */
++ if (ix86_red_zone_size != 0)
+ gcc_unreachable ();
+
+ ix86_output_indirect_branch (call_op, "%0", true);
+@@ -28081,6 +28098,86 @@ ix86_output_function_return (bool long_p)
+ return "rep%; ret";
+ }
+
++/* Output indirect function return. RET_OP is the function return
++ target. */
++
++const char *
++ix86_output_indirect_function_return (rtx ret_op)
++{
++ if (cfun->machine->function_return_type != indirect_branch_keep)
++ {
++ char thunk_name[32];
++ bool need_bnd_p = ix86_bnd_prefixed_insn_p (current_output_insn);
++ unsigned int regno = REGNO (ret_op);
++ gcc_assert (regno == CX_REG);
++
++ if (cfun->machine->function_return_type
++ != indirect_branch_thunk_inline)
++ {
++ bool need_thunk = (cfun->machine->function_return_type
++ == indirect_branch_thunk);
++ indirect_thunk_name (thunk_name, regno, need_bnd_p, true);
++ if (need_bnd_p)
++ {
++ if (need_thunk)
++ {
++ indirect_return_via_cx_bnd = true;
++ indirect_thunks_bnd_used |= 1 << CX_REG;
++ }
++ fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name);
++ }
++ else
++ {
++ if (need_thunk)
++ {
++ indirect_return_via_cx = true;
++ indirect_thunks_used |= 1 << CX_REG;
++ }
++ fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
++ }
++ }
++ else
++ output_indirect_thunk (need_bnd_p, regno);
++
++ return "";
++ }
++ else
++ return "%!jmp\t%A0";
++}
++
++/* Split simple return with popping POPC bytes from stack to indirect
++ branch with stack adjustment . */
++
++void
++ix86_split_simple_return_pop_internal (rtx popc)
++{
++ struct machine_function *m = cfun->machine;
++ rtx ecx = gen_rtx_REG (SImode, CX_REG);
++ rtx_insn *insn;
++
++ /* There is no "pascal" calling convention in any 64bit ABI. */
++ gcc_assert (!TARGET_64BIT);
++
++ insn = emit_insn (gen_pop (ecx));
++ m->fs.cfa_offset -= UNITS_PER_WORD;
++ m->fs.sp_offset -= UNITS_PER_WORD;
++
++ rtx x = plus_constant (Pmode, stack_pointer_rtx, UNITS_PER_WORD);
++ x = gen_rtx_SET (stack_pointer_rtx, x);
++ add_reg_note (insn, REG_CFA_ADJUST_CFA, x);
++ add_reg_note (insn, REG_CFA_REGISTER, gen_rtx_SET (ecx, pc_rtx));
++ RTX_FRAME_RELATED_P (insn) = 1;
++
++ x = gen_rtx_PLUS (Pmode, stack_pointer_rtx, popc);
++ x = gen_rtx_SET (stack_pointer_rtx, x);
++ insn = emit_insn (x);
++ add_reg_note (insn, REG_CFA_ADJUST_CFA, x);
++ RTX_FRAME_RELATED_P (insn) = 1;
++
++ /* Now return address is in ECX. */
++ emit_jump_insn (gen_simple_return_indirect_internal (ecx));
++}
++
+ /* Output the assembly for a call instruction. */
+
+ const char *
+diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
+index 05a88ff..857466a 100644
+--- a/gcc/config/i386/i386.md
++++ b/gcc/config/i386/i386.md
+@@ -11813,7 +11813,7 @@
+ (define_insn "*indirect_jump"
+ [(set (pc) (match_operand:W 0 "indirect_branch_operand" "rBw"))]
+ ""
+- "* return ix86_output_indirect_jmp (operands[0], false);"
++ "* return ix86_output_indirect_jmp (operands[0]);"
+ [(set (attr "type")
+ (if_then_else (match_test "(cfun->machine->indirect_branch_type
+ != indirect_branch_keep)")
+@@ -11868,7 +11868,7 @@
+ [(set (pc) (match_operand:W 0 "indirect_branch_operand" "rBw"))
+ (use (label_ref (match_operand 1)))]
+ ""
+- "* return ix86_output_indirect_jmp (operands[0], false);"
++ "* return ix86_output_indirect_jmp (operands[0]);"
+ [(set (attr "type")
+ (if_then_else (match_test "(cfun->machine->indirect_branch_type
+ != indirect_branch_keep)")
+@@ -12520,11 +12520,14 @@
+ (set_attr "prefix_rep" "1")
+ (set_attr "modrm" "0")])
+
+-(define_insn "simple_return_pop_internal"
++(define_insn_and_split "simple_return_pop_internal"
+ [(simple_return)
+ (use (match_operand:SI 0 "const_int_operand"))]
+ "reload_completed"
+ "%!ret\t%0"
++ "&& cfun->machine->function_return_type != indirect_branch_keep"
++ [(const_int 0)]
++ "ix86_split_simple_return_pop_internal (operands[0]); DONE;"
+ [(set_attr "length" "3")
+ (set_attr "atom_unit" "jeu")
+ (set_attr "length_immediate" "2")
+@@ -12535,7 +12538,7 @@
+ [(simple_return)
+ (use (match_operand:SI 0 "register_operand" "r"))]
+ "reload_completed"
+- "* return ix86_output_indirect_jmp (operands[0], true);"
++ "* return ix86_output_indirect_function_return (operands[0]);"
+ [(set (attr "type")
+ (if_then_else (match_test "(cfun->machine->indirect_branch_type
+ != indirect_branch_keep)")
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-22.c b/gcc/testsuite/gcc.target/i386/ret-thunk-22.c
+new file mode 100644
+index 0000000..89e086d
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-22.c
+@@ -0,0 +1,15 @@
++/* PR target/r84530 */
++/* { dg-do compile { target ia32 } } */
++/* { dg-options "-O2 -mfunction-return=thunk" } */
++
++struct s { _Complex unsigned short x; };
++struct s gs = { 100 + 200i };
++struct s __attribute__((noinline)) foo (void) { return gs; }
++
++/* { dg-final { scan-assembler-times "popl\[\\t \]*%ecx" 1 } } */
++/* { dg-final { scan-assembler "lea\[l\]?\[\\t \]*4\\(%esp\\), %esp" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk_ecx" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-23.c b/gcc/testsuite/gcc.target/i386/ret-thunk-23.c
+new file mode 100644
+index 0000000..43f0cca
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-23.c
+@@ -0,0 +1,15 @@
++/* PR target/r84530 */
++/* { dg-do compile { target ia32 } } */
++/* { dg-options "-O2 -mfunction-return=thunk-extern" } */
++
++struct s { _Complex unsigned short x; };
++struct s gs = { 100 + 200i };
++struct s __attribute__((noinline)) foo (void) { return gs; }
++
++/* { dg-final { scan-assembler-times "popl\[\\t \]*%ecx" 1 } } */
++/* { dg-final { scan-assembler "lea\[l\]?\[\\t \]*4\\(%esp\\), %esp" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk_ecx" } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not {\tpause} } } */
++/* { dg-final { scan-assembler-not {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-24.c b/gcc/testsuite/gcc.target/i386/ret-thunk-24.c
+new file mode 100644
+index 0000000..8729e35
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-24.c
+@@ -0,0 +1,15 @@
++/* PR target/r84530 */
++/* { dg-do compile { target ia32 } } */
++/* { dg-options "-O2 -mfunction-return=thunk-inline" } */
++
++struct s { _Complex unsigned short x; };
++struct s gs = { 100 + 200i };
++struct s __attribute__((noinline)) foo (void) { return gs; }
++
++/* { dg-final { scan-assembler-times "popl\[\\t \]*%ecx" 1 } } */
++/* { dg-final { scan-assembler "lea\[l\]?\[\\t \]*4\\(%esp\\), %esp" } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk_ecx" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-25.c b/gcc/testsuite/gcc.target/i386/ret-thunk-25.c
+new file mode 100644
+index 0000000..f73553c
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-25.c
+@@ -0,0 +1,15 @@
++/* PR target/r84530 */
++/* { dg-do compile { target ia32 } } */
++/* { dg-options "-O2 -mfunction-return=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
++
++struct s { _Complex unsigned short x; };
++struct s gs = { 100 + 200i };
++struct s __attribute__((noinline)) foo (void) { return gs; }
++
++/* { dg-final { scan-assembler-times "popl\[\\t \]*%ecx" 1 } } */
++/* { dg-final { scan-assembler "lea\[l\]?\[\\t \]*4\\(%esp\\), %esp" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk_bnd_ecx" } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler {\tpause} } } */
++/* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-26.c b/gcc/testsuite/gcc.target/i386/ret-thunk-26.c
+new file mode 100644
+index 0000000..9144e98
+--- /dev/null
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-26.c
+@@ -0,0 +1,40 @@
++/* PR target/r84530 */
++/* { dg-do run } */
++/* { dg-options "-Os -mfunction-return=thunk" } */
++
++struct S { int i; };
++__attribute__((const, noinline, noclone))
++struct S foo (int x)
++{
++ struct S s;
++ s.i = x;
++ return s;
++}
++
++int a[2048], b[2048], c[2048], d[2048];
++struct S e[2048];
++
++__attribute__((noinline, noclone)) void
++bar (void)
++{
++ int i;
++ for (i = 0; i < 1024; i++)
++ {
++ e[i] = foo (i);
++ a[i+2] = a[i] + a[i+1];
++ b[10] = b[10] + i;
++ c[i] = c[2047 - i];
++ d[i] = d[i + 1];
++ }
++}
++
++int
++main ()
++{
++ int i;
++ bar ();
++ for (i = 0; i < 1024; i++)
++ if (e[i].i != i)
++ __builtin_abort ();
++ return 0;
++}
+--
+2.7.4
+
diff --git a/meta/recipes-devtools/gcc/gcc-6.4/backport/0012-i386-Add-TARGET_INDIRECT_BRANCH_REGISTER.patch
b/meta/recipes-devtools/gcc/gcc-6.4/backport/0012-i386-Add-TARGET_INDIRECT_BRANCH_REGISTER.patch
new file mode 100644
index 0000000..b50ac5c
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-6.4/backport/0012-i386-Add-TARGET_INDIRECT_BRANCH_REGISTER.patch
@@ -0,0 +1,1004 @@
+From 7ba192d11a43d24ce427a3dfce0ad0592bd52830 Mon Sep 17 00:00:00 2001
+From: hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Mon, 26 Feb 2018 17:00:46 +0000
+Subject: [PATCH 12/12] i386: Add TARGET_INDIRECT_BRANCH_REGISTER
+
+For
+
+---
+struct C {
+ virtual ~C();
+ virtual void f();
+};
+
+void
+f (C *p)
+{
+ p->f();
+ p->f();
+}
+---
+
+-mindirect-branch=thunk-extern -O2 on x86-64 GNU/Linux generates:
+
+_Z1fP1C:
+.LFB0:
+ .cfi_startproc
+ pushq %rbx
+ .cfi_def_cfa_offset 16
+ .cfi_offset 3, -16
+ movq (%rdi), %rax
+ movq %rdi, %rbx
+ jmp .LIND1
+.LIND0:
+ pushq 16(%rax)
+ jmp __x86_indirect_thunk
+.LIND1:
+ call .LIND0
+ movq (%rbx), %rax
+ movq %rbx, %rdi
+ popq %rbx
+ .cfi_def_cfa_offset 8
+ movq 16(%rax), %rax
+ jmp __x86_indirect_thunk_rax
+ .cfi_endproc
+
+x86-64 is supposed to have asynchronous unwind tables by default, but
+there is nothing that reflects the change in the (relative) frame
+address after .LIND0. That region really has to be moved outside of
+the .cfi_startproc/.cfi_endproc bracket.
+
+This patch adds TARGET_INDIRECT_BRANCH_REGISTER to force indirect
+branch via register whenever -mindirect-branch= is used. Now,
+-mindirect-branch=thunk-extern -O2 on x86-64 GNU/Linux generates:
+
+_Z1fP1C:
+.LFB0:
+ .cfi_startproc
+ pushq %rbx
+ .cfi_def_cfa_offset 16
+ .cfi_offset 3, -16
+ movq (%rdi), %rax
+ movq %rdi, %rbx
+ movq 16(%rax), %rax
+ call __x86_indirect_thunk_rax
+ movq (%rbx), %rax
+ movq %rbx, %rdi
+ popq %rbx
+ .cfi_def_cfa_offset 8
+ movq 16(%rax), %rax
+ jmp __x86_indirect_thunk_rax
+ .cfi_endproc
+
+so that "-mindirect-branch=thunk-extern" is equivalent to
+"-mindirect-branch=thunk-extern -mindirect-branch-register", which is
+used by Linux kernel.
+
+gcc/
+
+ Backport from mainline
+ PR target/84039
+ * config/i386/constraints.md (Bs): Replace
+ ix86_indirect_branch_register with
+ TARGET_INDIRECT_BRANCH_REGISTER.
+ (Bw): Likewise.
+ * config/i386/i386.md (indirect_jump): Likewise.
+ (tablejump): Likewise.
+ (*sibcall_memory): Likewise.
+ (*sibcall_value_memory): Likewise.
+ Peepholes of indirect call and jump via memory: Likewise.
+ (*sibcall_GOT_32): Disallowed for TARGET_INDIRECT_BRANCH_REGISTER.
+ (*sibcall_value_GOT_32): Likewise.
+ * config/i386/predicates.md (indirect_branch_operand): Likewise.
+ (GOT_memory_operand): Likewise.
+ (call_insn_operand): Likewise.
+ (sibcall_insn_operand): Likewise.
+ (GOT32_symbol_operand): Likewise.
+ * config/i386/i386.h (TARGET_INDIRECT_BRANCH_REGISTER): New.
+
+gcc/testsuite/
+
+ Backport from mainline
+ PR target/84039
+ * gcc.target/i386/indirect-thunk-1.c: Updated.
+ * gcc.target/i386/indirect-thunk-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-5.c: Likewise.
+ * gcc.target/i386/indirect-thunk-6.c: Likewise.
+ * gcc.target/i386/indirect-thunk-7.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-1.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-5.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-6.c: Likewise.
+ * gcc.target/i386/indirect-thunk-attr-7.c: Likewise.
+ * gcc.target/i386/indirect-thunk-bnd-1.c: Likewise.
+ * gcc.target/i386/indirect-thunk-bnd-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-bnd-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-bnd-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-1.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-5.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-6.c: Likewise.
+ * gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-1.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-2.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-3.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-4.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-5.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-6.c: Likewise.
+ * gcc.target/i386/indirect-thunk-inline-7.c: Likewise.
+ * gcc.target/i386/ret-thunk-9.c: Likewise.
+ * gcc.target/i386/ret-thunk-10.c: Likewise.
+ * gcc.target/i386/ret-thunk-11.c: Likewise.
+ * gcc.target/i386/ret-thunk-12.c: Likewise.
+ * gcc.target/i386/ret-thunk-13.c: Likewise.
+ * gcc.target/i386/ret-thunk-14.c: Likewise.
+ * gcc.target/i386/ret-thunk-15.c: Likewise.
+
+Upstream-Status: Pending
+
+Signed-off-by: Juro Bystricky <juro bystricky intel com>
+
+---
+ gcc/config/i386/constraints.md | 4 ++--
+ gcc/config/i386/i386.h | 5 ++++
+ gcc/config/i386/i386.md | 28 +++++++++++++---------
+ gcc/config/i386/predicates.md | 6 ++---
+ gcc/testsuite/gcc.target/i386/indirect-thunk-1.c | 5 ++--
+ gcc/testsuite/gcc.target/i386/indirect-thunk-2.c | 5 ++--
+ gcc/testsuite/gcc.target/i386/indirect-thunk-3.c | 5 ++--
+ gcc/testsuite/gcc.target/i386/indirect-thunk-4.c | 5 ++--
+ gcc/testsuite/gcc.target/i386/indirect-thunk-5.c | 6 +++--
+ gcc/testsuite/gcc.target/i386/indirect-thunk-6.c | 12 ++++++----
+ gcc/testsuite/gcc.target/i386/indirect-thunk-7.c | 5 ++--
+ .../gcc.target/i386/indirect-thunk-attr-1.c | 5 ++--
+ .../gcc.target/i386/indirect-thunk-attr-2.c | 5 ++--
+ .../gcc.target/i386/indirect-thunk-attr-3.c | 3 +--
+ .../gcc.target/i386/indirect-thunk-attr-4.c | 3 +--
+ .../gcc.target/i386/indirect-thunk-attr-5.c | 9 ++++---
+ .../gcc.target/i386/indirect-thunk-attr-6.c | 9 ++++---
+ .../gcc.target/i386/indirect-thunk-attr-7.c | 5 ++--
+ .../gcc.target/i386/indirect-thunk-bnd-1.c | 6 ++---
+ .../gcc.target/i386/indirect-thunk-bnd-2.c | 6 ++---
+ .../gcc.target/i386/indirect-thunk-bnd-3.c | 5 ++--
+ .../gcc.target/i386/indirect-thunk-bnd-4.c | 7 +++---
+ .../gcc.target/i386/indirect-thunk-extern-1.c | 5 ++--
+ .../gcc.target/i386/indirect-thunk-extern-2.c | 5 ++--
+ .../gcc.target/i386/indirect-thunk-extern-3.c | 9 ++++---
+ .../gcc.target/i386/indirect-thunk-extern-4.c | 6 ++---
+ .../gcc.target/i386/indirect-thunk-extern-5.c | 6 +++--
+ .../gcc.target/i386/indirect-thunk-extern-6.c | 8 +++----
+ .../gcc.target/i386/indirect-thunk-extern-7.c | 5 ++--
+ .../gcc.target/i386/indirect-thunk-inline-1.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-inline-2.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-inline-3.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-inline-4.c | 2 +-
+ .../gcc.target/i386/indirect-thunk-inline-5.c | 3 ++-
+ .../gcc.target/i386/indirect-thunk-inline-6.c | 3 ++-
+ .../gcc.target/i386/indirect-thunk-inline-7.c | 4 ++--
+ gcc/testsuite/gcc.target/i386/ret-thunk-10.c | 9 +++----
+ gcc/testsuite/gcc.target/i386/ret-thunk-11.c | 9 +++----
+ gcc/testsuite/gcc.target/i386/ret-thunk-12.c | 8 +++----
+ gcc/testsuite/gcc.target/i386/ret-thunk-13.c | 5 ++--
+ gcc/testsuite/gcc.target/i386/ret-thunk-14.c | 7 +++---
+ gcc/testsuite/gcc.target/i386/ret-thunk-15.c | 7 +++---
+ gcc/testsuite/gcc.target/i386/ret-thunk-9.c | 13 ++++------
+ 43 files changed, 128 insertions(+), 141 deletions(-)
+
+diff --git a/gcc/config/i386/constraints.md b/gcc/config/i386/constraints.md
+index 9204c8e..ef684a9 100644
+--- a/gcc/config/i386/constraints.md
++++ b/gcc/config/i386/constraints.md
+@@ -172,7 +172,7 @@
+
+ (define_constraint "Bs"
+ "@internal Sibcall memory operand."
+- (ior (and (not (match_test "ix86_indirect_branch_register"))
++ (ior (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER"))
+ (not (match_test "TARGET_X32"))
+ (match_operand 0 "sibcall_memory_operand"))
+ (and (match_test "TARGET_X32 && Pmode == DImode")
+@@ -180,7 +180,7 @@
+
+ (define_constraint "Bw"
+ "@internal Call memory operand."
+- (ior (and (not (match_test "ix86_indirect_branch_register"))
++ (ior (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER"))
+ (not (match_test "TARGET_X32"))
+ (match_operand 0 "memory_operand"))
+ (and (match_test "TARGET_X32 && Pmode == DImode")
+diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
+index b34bc11..1816d71 100644
+--- a/gcc/config/i386/i386.h
++++ b/gcc/config/i386/i386.h
+@@ -2676,6 +2676,11 @@ extern void debug_dispatch_window (int);
+ #define TARGET_RECIP_VEC_DIV ((recip_mask & RECIP_MASK_VEC_DIV) != 0)
+ #define TARGET_RECIP_VEC_SQRT ((recip_mask & RECIP_MASK_VEC_SQRT) != 0)
+
++
++#define TARGET_INDIRECT_BRANCH_REGISTER \
++ (ix86_indirect_branch_register \
++ || cfun->machine->indirect_branch_type != indirect_branch_keep)
++
+ #define IX86_HLE_ACQUIRE (1 << 16)
+ #define IX86_HLE_RELEASE (1 << 17)
+
+diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
+index 857466a..6a6dc26 100644
+--- a/gcc/config/i386/i386.md
++++ b/gcc/config/i386/i386.md
+@@ -11805,7 +11805,7 @@
+ [(set (pc) (match_operand 0 "indirect_branch_operand"))]
+ ""
+ {
+- if (TARGET_X32 || ix86_indirect_branch_register)
++ if (TARGET_X32 || TARGET_INDIRECT_BRANCH_REGISTER)
+ operands[0] = convert_memory_address (word_mode, operands[0]);
+ cfun->machine->has_local_indirect_jump = true;
+ })
+@@ -11859,7 +11859,7 @@
+ OPTAB_DIRECT);
+ }
+
+- if (TARGET_X32 || ix86_indirect_branch_register)
++ if (TARGET_X32 || TARGET_INDIRECT_BRANCH_REGISTER)
+ operands[0] = convert_memory_address (word_mode, operands[0]);
+ cfun->machine->has_local_indirect_jump = true;
+ })
+@@ -12029,7 +12029,10 @@
+ (match_operand:SI 0 "register_no_elim_operand" "U")
+ (match_operand:SI 1 "GOT32_symbol_operand"))))
+ (match_operand 2))]
+- "!TARGET_MACHO && !TARGET_64BIT && SIBLING_CALL_P (insn)"
++ "!TARGET_MACHO
++ && !TARGET_64BIT
++ && !TARGET_INDIRECT_BRANCH_REGISTER
++ && SIBLING_CALL_P (insn)"
+ {
+ rtx fnaddr = gen_rtx_PLUS (Pmode, operands[0], operands[1]);
+ fnaddr = gen_const_mem (Pmode, fnaddr);
+@@ -12048,7 +12051,7 @@
+ [(call (mem:QI (match_operand:W 0 "memory_operand" "m"))
+ (match_operand 1))
+ (unspec [(const_int 0)] UNSPEC_PEEPSIB)]
+- "!TARGET_X32 && !ix86_indirect_branch_register"
++ "!TARGET_X32 && !TARGET_INDIRECT_BRANCH_REGISTER"
+ "* return ix86_output_call_insn (insn, operands[0]);"
+ [(set_attr "type" "call")])
+
+@@ -12058,7 +12061,7 @@
+ (call (mem:QI (match_dup 0))
+ (match_operand 3))]
+ "!TARGET_X32
+- && !ix86_indirect_branch_register
++ && !TARGET_INDIRECT_BRANCH_REGISTER
+ && SIBLING_CALL_P (peep2_next_insn (1))
+ && !reg_mentioned_p (operands[0],
+ CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))"
+@@ -12073,7 +12076,7 @@
+ (call (mem:QI (match_dup 0))
+ (match_operand 3))]
+ "!TARGET_X32
+- && !ix86_indirect_branch_register
++ && !TARGET_INDIRECT_BRANCH_REGISTER
+ && SIBLING_CALL_P (peep2_next_insn (2))
+ && !reg_mentioned_p (operands[0],
+ CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))"
+@@ -12171,7 +12174,7 @@
+ (match_operand:W 1 "memory_operand"))
+ (set (pc) (match_dup 0))]
+ "!TARGET_X32
+- && !ix86_indirect_branch_register
++ && !TARGET_INDIRECT_BRANCH_REGISTER
+ && peep2_reg_dead_p (2, operands[0])"
+ [(set (pc) (match_dup 1))])
+
+@@ -12229,7 +12232,10 @@
+ (match_operand:SI 1 "register_no_elim_operand" "U")
+ (match_operand:SI 2 "GOT32_symbol_operand"))))
+ (match_operand 3)))]
+- "!TARGET_MACHO && !TARGET_64BIT && SIBLING_CALL_P (insn)"
++ "!TARGET_MACHO
++ && !TARGET_64BIT
++ && !TARGET_INDIRECT_BRANCH_REGISTER
++ && SIBLING_CALL_P (insn)"
+ {
+ rtx fnaddr = gen_rtx_PLUS (Pmode, operands[1], operands[2]);
+ fnaddr = gen_const_mem (Pmode, fnaddr);
+@@ -12250,7 +12256,7 @@
+ (call (mem:QI (match_operand:W 1 "memory_operand" "m"))
+ (match_operand 2)))
+ (unspec [(const_int 0)] UNSPEC_PEEPSIB)]
+- "!TARGET_X32 && !ix86_indirect_branch_register"
++ "!TARGET_X32 && !TARGET_INDIRECT_BRANCH_REGISTER"
+ "* return ix86_output_call_insn (insn, operands[1]);"
+ [(set_attr "type" "callv")])
+
+@@ -12261,7 +12267,7 @@
+ (call (mem:QI (match_dup 0))
+ (match_operand 3)))]
+ "!TARGET_X32
+- && !ix86_indirect_branch_register
++ && !TARGET_INDIRECT_BRANCH_REGISTER
+ && SIBLING_CALL_P (peep2_next_insn (1))
+ && !reg_mentioned_p (operands[0],
+ CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))"
+@@ -12278,7 +12284,7 @@
+ (call (mem:QI (match_dup 0))
+ (match_operand 3)))]
+ "!TARGET_X32
+- && !ix86_indirect_branch_register
++ && !TARGET_INDIRECT_BRANCH_REGISTER
+ && SIBLING_CALL_P (peep2_next_insn (2))
+ && !reg_mentioned_p (operands[0],
+ CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))"
+diff --git a/gcc/config/i386/predicates.md b/gcc/config/i386/predicates.md
+index d1f0a7d..5f8a98f 100644
+--- a/gcc/config/i386/predicates.md
++++ b/gcc/config/i386/predicates.md
+@@ -593,7 +593,7 @@
+ ;; Test for a valid operand for indirect branch.
+ (define_predicate "indirect_branch_operand"
+ (ior (match_operand 0 "register_operand")
+- (and (not (match_test "ix86_indirect_branch_register"))
++ (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER"))
+ (not (match_test "TARGET_X32"))
+ (match_operand 0 "memory_operand"))))
+
+@@ -637,7 +637,7 @@
+ (ior (match_test "constant_call_address_operand
+ (op, mode == VOIDmode ? mode : Pmode)")
+ (match_operand 0 "call_register_no_elim_operand")
+- (and (not (match_test "ix86_indirect_branch_register"))
++ (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER"))
+ (ior (and (not (match_test "TARGET_X32"))
+ (match_operand 0 "memory_operand"))
+ (and (match_test "TARGET_X32 && Pmode == DImode")
+@@ -648,7 +648,7 @@
+ (ior (match_test "constant_call_address_operand
+ (op, mode == VOIDmode ? mode : Pmode)")
+ (match_operand 0 "register_no_elim_operand")
+- (and (not (match_test "ix86_indirect_branch_register"))
++ (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER"))
+ (ior (and (not (match_test "TARGET_X32"))
+ (match_operand 0 "sibcall_memory_operand"))
+ (and (match_test "TARGET_X32 && Pmode == DImode")
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
+index 60d0988..6e94d2c 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
+@@ -11,9 +11,8 @@ male_indirect_jump (long offset)
+ dispatch(offset);
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
+index aac7516..3c46707 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
+@@ -11,9 +11,8 @@ male_indirect_jump (long offset)
+ dispatch[offset](offset);
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
+index 9e24a38..2c7fb52 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
+@@ -12,9 +12,8 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
+index 127b5d9..0d3f895 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
+@@ -12,9 +12,8 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
+index fcaa18d..fb26c00 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
+@@ -9,8 +9,10 @@ foo (void)
+ bar ();
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
+index e464928..aa03fbd 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
+@@ -10,9 +10,13 @@ foo (void)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
+-/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+-/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target x32 } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 { target x32 } } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
+index 17c2d0f..3c72036 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
+@@ -35,9 +35,8 @@ bar (int i)
+ }
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } }
} } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
+index 9194ccf..7106407 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
+@@ -14,9 +14,8 @@ male_indirect_jump (long offset)
+ dispatch(offset);
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
+index e51f261..27c7e5b 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
+@@ -12,9 +12,8 @@ male_indirect_jump (long offset)
+ dispatch[offset](offset);
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
+index 4aeec18..89a2bac 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
+@@ -14,10 +14,9 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
+ /* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
+index ac0e599..3eb83c3 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
+@@ -13,10 +13,9 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
+ /* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
+index 573cf1e..0098dd1 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
+@@ -14,9 +14,8 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
+index b2b37fc..ece8de1 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
+@@ -13,9 +13,8 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
+index 4a43e19..d53fc88 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
+@@ -36,9 +36,8 @@ bar (int i)
+ }
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } }
} } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
+index ac84ab6..73d16ba 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
+@@ -10,9 +10,9 @@ foo (void)
+ dispatch (buf);
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */
+-/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd_rax" { target lp64 } } } */
++/* { dg-final { scan-assembler "bnd call\[ \t\]*__x86_indirect_thunk_bnd_eax" { target ia32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "bnd ret" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
+index ce655e8..856751a 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
+@@ -11,10 +11,8 @@ foo (void)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */
+-/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */
+-/* { dg-final { scan-assembler "bnd jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "bnd call\[ \t\]*__x86_indirect_thunk_bnd_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "bnd ret" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
+index d34485a..42312f6 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
+@@ -10,8 +10,9 @@ foo (void)
+ bar (buf);
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
+-/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd" } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd_rax" { target lp64 } } } */
++/* { dg-final { scan-assembler "bnd call\[ \t\]*__x86_indirect_thunk_bnd_eax" { target ia32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "bnd ret" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
+index 0e19830..c8ca102 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
+@@ -11,10 +11,9 @@ foo (void)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
+-/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk" } } */
+-/* { dg-final { scan-assembler "bnd jmp\[ \t\]*\.LIND" } } */
+-/* { dg-final { scan-assembler-times "bnd call\[ \t\]*\.LIND" 2 } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "bnd call\[ \t\]*__x86_indirect_thunk_bnd_(r|e)ax" } } */
++/* { dg-final { scan-assembler-times "bnd call\[ \t\]*\.LIND" 1 } } */
+ /* { dg-final { scan-assembler "bnd ret" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
+index 579441f..c09dd0a 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
+@@ -11,9 +11,8 @@ male_indirect_jump (long offset)
+ dispatch(offset);
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
+index c92e6f2..826425a 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
+@@ -11,9 +11,8 @@ male_indirect_jump (long offset)
+ dispatch[offset](offset);
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
+index d9964c2..3856268 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
+@@ -12,9 +12,8 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
+index d4dca4d..1ae49b1 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
+@@ -12,9 +12,7 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
+index 5c07e02..5328239 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
+@@ -9,8 +9,10 @@ foo (void)
+ bar ();
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
+index 3eb4406..8ae4348 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
+@@ -10,8 +10,8 @@ foo (void)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
+-/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 } } */
+-/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
+index aece938..2b9a33e 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
+@@ -35,9 +35,8 @@ bar (int i)
+ }
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } }
} } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
+index 3aba5e8..869d904 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
+@@ -11,7 +11,7 @@ male_indirect_jump (long offset)
+ dispatch(offset);
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
+index 0f0181d..c5c16ed 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
+@@ -11,7 +11,7 @@ male_indirect_jump (long offset)
+ dispatch[offset](offset);
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
+index 2eef6f3..4a63ebe 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
+@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times {\tpause} 1 } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
+index e825a10..a395ffc 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
+@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times {\tpause} 1 } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
+index c6d77e1..21cbfd3 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
+@@ -9,7 +9,8 @@ foo (void)
+ bar ();
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
+index 6454827..d1300f1 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
+@@ -10,7 +10,8 @@ foo (void)
+ return 0;
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */
++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times {\tpause} 1 } } */
+diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
+index c67066c..ea00924 100644
+--- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
+@@ -35,8 +35,8 @@ bar (int i)
+ }
+ }
+
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } }
} } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-10.c b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
+index e6fea84..af9023a 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
+@@ -15,9 +15,6 @@ foo (void)
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler-times {\tpause} 2 } } */
+ /* { dg-final { scan-assembler-times {\tlfence} 2 } } */
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "__x86_indirect_thunk:" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */
+-/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" { target { x32 } } } } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-11.c b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
+index e239ec4..ba467c5 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
+@@ -15,9 +15,6 @@ foo (void)
+ /* { dg-final { scan-assembler-times {\tlfence} 1 } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "__x86_indirect_thunk:" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */
+-/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" { target { x32 } } } } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-12.c b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
+index fa31813..43e57ca 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
+@@ -15,8 +15,6 @@ foo (void)
+ /* { dg-final { scan-assembler-times {\tlfence} 1 } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "__x86_indirect_thunk:" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */
+-/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" { target { x32 } } } } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
++/* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-13.c b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
+index fd5b41f..55f156c 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
+@@ -14,9 +14,8 @@ foo (void)
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler-times {\tpause} 2 } } */
+ /* { dg-final { scan-assembler-times {\tlfence} 2 } } */
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 3 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 3 } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_indirect_thunk" } } */
+-/* { dg-final { scan-assembler-not "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler-not "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-14.c b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
+index d606373..1c79043 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
+@@ -16,7 +16,6 @@ foo (void)
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?bar" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-15.c b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
+index 75e45e2..58aba31 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
+@@ -16,7 +16,6 @@ foo (void)
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-times {\tpause} 1 } } */
+ /* { dg-final { scan-assembler-times {\tlfence} 1 } } */
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?bar" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
+index d1db41c..d2df8b8 100644
+--- a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
+@@ -14,11 +14,8 @@ foo (void)
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "__x86_indirect_thunk:" } } */
+-/* { dg-final { scan-assembler-times {\tpause} 1 { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler-times {\tlfence} 1 { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
+-/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+-/* { dg-final { scan-assembler-times {\tpause} 2 { target { x32 } } } } */
+-/* { dg-final { scan-assembler-times {\tlfence} 2 { target { x32 } } } } */
+-/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { x32 } } } } */
+-/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
++/* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?bar" { target *-*-linux* } } } */
++/* { dg-final { scan-assembler-times {\tpause} 2 } } */
++/* { dg-final { scan-assembler-times {\tlfence} 2 } } */
++/* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+--
+2.7.4
+
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