[PATCH] -mno-xsave should imply -mno-avx since -mavx implies -mxsave

[Hongtao Liu]

Hi:
If -mavx implies -mxsave, then -mno-xsave should imply -mno-avx.
Current status is -mno-avx implies -mno-xsave which should be wrong.

Bootstrap is ok, Regression test is ok for i386/x86 backend.
Ok for trunk?

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.



-- 
BR,
Hongtao
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