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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.

From-SVN: r256734
This commit is contained in:
H.J. Lu 2018-01-16 11:10:44 +00:00 committed by H.J. Lu
parent 0c198399c1
commit c03a554103
58 changed files with 641 additions and 74 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
gcc/ChangeLog
View File

@ -1,3 +1,40 @@
2018-01-16 H.J. Lu <hongjiu.lu@intel.com>
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.
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.
2018-01-16 H.J. Lu <hongjiu.lu@intel.com>
Backport from mainline

1
gcc/config/i386/i386-protos.h
View File

@ -314,6 +314,7 @@ 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);

152
gcc/config/i386/i386.c
View File

@ -7188,6 +7188,31 @@ 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
@ -12000,8 +12025,12 @@ 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" : "";
@ -12016,7 +12045,10 @@ 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
{
@ -12029,10 +12061,20 @@ 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);
}
}
}
}
@ -12127,7 +12169,7 @@ 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));
@ -12170,6 +12212,36 @@ 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);
@ -28775,7 +28847,7 @@ 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
@ -28884,7 +28956,7 @@ 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
@ -29019,6 +29091,46 @@ 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 *
@ -42090,6 +42202,28 @@ 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;
}
@ -46400,6 +46534,8 @@ static const struct attribute_spec ix86_attribute_table[] =
ix86_handle_no_caller_saved_registers_attribute, false },
{ "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 }

3
gcc/config/i386/i386.h
View File

@ -2616,6 +2616,9 @@ 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, the current function is a function specified with
the "interrupt" or "no_caller_saved_registers" attribute. */
BOOL_BITFIELD no_caller_saved_registers : 1;

9
gcc/config/i386/i386.md
View File

@ -12315,7 +12315,7 @@
(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")
@ -12337,12 +12337,7 @@
[(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")

6
gcc/config/i386/i386.opt
View File

@ -932,9 +932,13 @@ 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)

9
gcc/doc/extend.texi
View File

@ -5550,6 +5550,15 @@ 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

13
gcc/doc/invoke.texi
View File

@ -1211,7 +1211,7 @@ 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 -mgeneral-regs-only @gol
-mindirect-branch=@var{choice}}
-mindirect-branch=@var{choice} -mfunction-return==@var{choice}}
@emph{x86 Windows Options}
@gccoptlist{-mconsole -mcygwin -mno-cygwin -mdll @gol
@ -25698,6 +25698,17 @@ 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

89
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,92 @@
2018-01-16 H.J. Lu <hongjiu.lu@intel.com>
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.
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.
2018-01-16 H.J. Lu <hongjiu.lu@intel.com>
Backport from mainline

4
gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
View File

@ -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" } } */

4
gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
View File

@ -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" } } */

4
gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
View File

@ -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" } } */

4
gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
View File

@ -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" } } */

2
gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
View File

@ -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);

2
gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
View File

@ -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);

4
gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
View File

@ -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" } } */

4
gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
View File

@ -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" } } */

4
gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
View File

@ -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" } } */

4
gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
View File

@ -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} } } */

4
gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
View File

@ -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} } } */

4
gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
View File

@ -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 } } } } */

4
gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
View File

@ -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 } } } } */

4
gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
View File

@ -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)} } } */

2
gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c
View File

@ -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);

4
gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
View File

@ -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" } } */

4
gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
View File

@ -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" } } */

2
gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
View File

@ -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];

2
gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
View File

@ -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];

4
gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
View File

@ -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)} } } */

4
gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
View File

@ -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)} } } */

4
gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
View File

@ -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 } } } } */

4
gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
View File

@ -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 } } } } */

2
gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
View File

@ -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);

2
gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
View File

@ -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);

4
gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
View File

@ -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)} } } */

4
gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
View File

@ -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} } } */

4
gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
View File

@ -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} } } */

4
gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
View File

@ -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 } } */

4
gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
View File

@ -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 } } */

2
gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
View File

@ -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);

2
gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
View File

@ -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);

4
gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
View File

@ -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" } } */

13
gcc/testsuite/gcc.target/i386/ret-thunk-1.c Normal file
View File

@ -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} } } */

23
gcc/testsuite/gcc.target/i386/ret-thunk-10.c Normal file
View File

@ -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 } } } */

23
gcc/testsuite/gcc.target/i386/ret-thunk-11.c Normal file
View File

@ -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 } } } */

22
gcc/testsuite/gcc.target/i386/ret-thunk-12.c Normal file
View File

@ -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 } } } */

22
gcc/testsuite/gcc.target/i386/ret-thunk-13.c Normal file
View File

@ -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 } } } */

22
gcc/testsuite/gcc.target/i386/ret-thunk-14.c Normal file
View File

@ -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 } } } */

22
gcc/testsuite/gcc.target/i386/ret-thunk-15.c Normal file
View File

@ -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 } } } */

18
gcc/testsuite/gcc.target/i386/ret-thunk-16.c Normal file
View File

@ -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" } } */

13
gcc/testsuite/gcc.target/i386/ret-thunk-2.c Normal file
View File

@ -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" } } */

12
gcc/testsuite/gcc.target/i386/ret-thunk-3.c Normal file
View File

@ -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" } } */

12
gcc/testsuite/gcc.target/i386/ret-thunk-4.c Normal file
View File

@ -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" } } */

15
gcc/testsuite/gcc.target/i386/ret-thunk-5.c Normal file
View File

@ -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} } } */

14
gcc/testsuite/gcc.target/i386/ret-thunk-6.c Normal file
View File

@ -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" } } */

13
gcc/testsuite/gcc.target/i386/ret-thunk-7.c Normal file
View File

@ -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" } } */

14
gcc/testsuite/gcc.target/i386/ret-thunk-8.c Normal file
View File

@ -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" } } */

24
gcc/testsuite/gcc.target/i386/ret-thunk-9.c Normal file
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@ -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 } } } */