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-fuse-caller-save - Enable for i386

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2014-05-30  Tom de Vries  <tom@codesourcery.com>

	* config/i386/i386.c (TARGET_CALL_FUSAGE_CONTAINS_NON_CALLEE_CLOBBERS):
	Redefine as true.

	* gcc.target/i386/fuse-caller-save.c: New test.
	* gcc.dg/ira-shrinkwrap-prep-1.c: Run with -fno-use-caller-save.
	* gcc.dg/ira-shrinkwrap-prep-2.c: Same.

From-SVN: r211078
This commit is contained in:
Tom de Vries 2014-05-30 11:39:49 +00:00 committed by Tom de Vries
parent 29f0952140
commit 5028356f89
6 changed files with 41 additions and 2 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2014-05-30 Tom de Vries <tom@codesourcery.com>
* config/i386/i386.c (TARGET_CALL_FUSAGE_CONTAINS_NON_CALLEE_CLOBBERS):
Redefine as true.
2014-05-30 Tom de Vries <tom@codesourcery.com>
* lra-int.h (struct lra_reg): Add field actual_call_used_reg_set.

3
gcc/config/i386/i386.c
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@ -47272,6 +47272,9 @@ ix86_atomic_assign_expand_fenv (tree *hold, tree *clear, tree *update)
#undef TARGET_MODE_PRIORITY
#define TARGET_MODE_PRIORITY ix86_mode_priority
#undef TARGET_CALL_FUSAGE_CONTAINS_NON_CALLEE_CLOBBERS
#define TARGET_CALL_FUSAGE_CONTAINS_NON_CALLEE_CLOBBERS true
struct gcc_target targetm = TARGET_INITIALIZER;
#include "gt-i386.h"

6
gcc/testsuite/ChangeLog
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@ -1,3 +1,9 @@
2014-05-30 Tom de Vries <tom@codesourcery.com>
* gcc.target/i386/fuse-caller-save.c: New test.
* gcc.dg/ira-shrinkwrap-prep-1.c: Run with -fno-use-caller-save.
* gcc.dg/ira-shrinkwrap-prep-2.c: Same.
2014-04-30 Alan Lawrence <alan.lawrence@arm.com>
gcc.target/arm/simd/vrev16p8_1.c: New file.

2
gcc/testsuite/gcc.dg/ira-shrinkwrap-prep-1.c
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@ -1,5 +1,5 @@
/* { dg-do compile { target { { x86_64-*-* && lp64 } || { powerpc*-*-* && lp64 } } } } */
/* { dg-options "-O3 -fdump-rtl-ira -fdump-rtl-pro_and_epilogue" } */
/* { dg-options "-O3 -fdump-rtl-ira -fdump-rtl-pro_and_epilogue -fno-use-caller-save" } */
long __attribute__((noinline, noclone))
foo (long a)

2
gcc/testsuite/gcc.dg/ira-shrinkwrap-prep-2.c
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@ -1,5 +1,5 @@
/* { dg-do compile { target { { x86_64-*-* && lp64 } || { powerpc*-*-* && lp64 } } } } */
/* { dg-options "-O3 -fdump-rtl-ira -fdump-rtl-pro_and_epilogue" } */
/* { dg-options "-O3 -fdump-rtl-ira -fdump-rtl-pro_and_epilogue -fno-use-caller-save" } */
long __attribute__((noinline, noclone))
foo (long a)

25
gcc/testsuite/gcc.target/i386/fuse-caller-save.c Normal file
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@ -0,0 +1,25 @@
/* { dg-do compile } */
/* { dg-options "-O2 -fuse-caller-save" } */
/* Testing -fuse-caller-save optimization option. */
static int __attribute__((noinline))
bar (int x)
{
return x + 3;
}
int __attribute__((noinline))
foo (int y)
{
return y + bar (y);
}
int
main (void)
{
return !(foo (5) == 13);
}
/* { dg-final { scan-assembler-not "\.cfi_def_cfa_offset" } } */
/* { dg-final { scan-assembler-not "\.cfi_offset" } } */