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From: hongtao Liu <liuhongt@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc r10-8771] If -mavx implies -mxsave, then -mno-xsave should imply -mno-avx. Date: Thu, 17 Sep 2020 05:10:28 +0000 (GMT) [thread overview] Message-ID: <20200917051028.64264385782F@sourceware.org> (raw) https://gcc.gnu.org/g:a99116a2cab3f1265a79ffe10ad63fe4ee26f10a commit r10-8771-ga99116a2cab3f1265a79ffe10ad63fe4ee26f10a Author: liuhongt <hongtao.liu@intel.com> Date: Wed Sep 16 13:56:30 2020 +0800 If -mavx implies -mxsave, then -mno-xsave should imply -mno-avx. 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. Diff: --- gcc/common/config/i386/i386-common.c | 5 +++-- gcc/testsuite/gcc.target/i386/xsave-avx-1.c | 12 ++++++++++++ 2 files changed, 15 insertions(+), 2 deletions(-) diff --git a/gcc/common/config/i386/i386-common.c b/gcc/common/config/i386/i386-common.c index 8e4cd64542d..1e4d25f052a 100644 --- a/gcc/common/config/i386/i386-common.c +++ b/gcc/common/config/i386/i386-common.c @@ -185,12 +185,13 @@ 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) diff --git a/gcc/testsuite/gcc.target/i386/xsave-avx-1.c b/gcc/testsuite/gcc.target/i386/xsave-avx-1.c new file mode 100644 index 00000000000..ca87a791446 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/xsave-avx-1.c @@ -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); +}
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