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If -mavx implies -mxsave, then -mno-xsave should imply -mno-avx.

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Current status is -mno-avx implies -mno-xsave which should be wrong.

gcc/ChangeLog

	* common/config/i386/i386-common.c
	(OPTION_MASK_ISA_AVX_UNSET): Remove OPTION_MASK_ISA_XSAVE_UNSET.
	(OPTION_MASK_ISA_XSAVE_UNSET): Add OPTION_MASK_ISA_AVX_UNSET.

gcc/testsuite/ChangeLog

	* gcc.target/i386/xsave-avx-1.c: New test.
This commit is contained in:
liuhongt 2020-09-16 13:56:30 +08:00
parent ecde1b0a46
commit a8c4b66a41
2 changed files with 15 additions and 2 deletions
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5
gcc/common/config/i386/i386-common.c
View file

@ -187,12 +187,13 @@ along with GCC; see the file COPYING3. If not see
#define OPTION_MASK_ISA_AVX_UNSET \
(OPTION_MASK_ISA_AVX | OPTION_MASK_ISA_FMA_UNSET \
| OPTION_MASK_ISA_FMA4_UNSET | OPTION_MASK_ISA_F16C_UNSET \
| OPTION_MASK_ISA_AVX2_UNSET | OPTION_MASK_ISA_XSAVE_UNSET)
| OPTION_MASK_ISA_AVX2_UNSET )
#define OPTION_MASK_ISA_FMA_UNSET OPTION_MASK_ISA_FMA
#define OPTION_MASK_ISA_FXSR_UNSET OPTION_MASK_ISA_FXSR
#define OPTION_MASK_ISA_XSAVE_UNSET \
(OPTION_MASK_ISA_XSAVE | OPTION_MASK_ISA_XSAVEOPT_UNSET \
| OPTION_MASK_ISA_XSAVES_UNSET | OPTION_MASK_ISA_XSAVEC_UNSET)
| OPTION_MASK_ISA_XSAVES_UNSET | OPTION_MASK_ISA_XSAVEC_UNSET \
| OPTION_MASK_ISA_AVX_UNSET)
#define OPTION_MASK_ISA_XSAVEOPT_UNSET OPTION_MASK_ISA_XSAVEOPT
#define OPTION_MASK_ISA_AVX2_UNSET \
(OPTION_MASK_ISA_AVX2 | OPTION_MASK_ISA_AVX512F_UNSET)

12
gcc/testsuite/gcc.target/i386/xsave-avx-1.c Normal file
View file

@ -0,0 +1,12 @@
/* { dg-do compile } */
/* { dg-options "-mxsave -mno-avx" } */
#include <immintrin.h>
extern int m;
void
avx_imply_save (void)
{
_xgetbv (m);
}