Re: [PATCH] i386: Fix behavior for both using AVX10.1-256 in options and function attribute

On Wed, Apr 24, 2024 at 1:46 PM Haochen Jiang wrote: > > Hi all, > > When we are using -mavx10.1-256 in command line and avx10.1-256 in > target attribute together, zmm should never be generated. But current > GCC will generate zmm since it wrongly enables EVEX512 for non-explicitly > set AVX512.

[PATCH] i386: Fix behavior for both using AVX10.1-256 in options and function attribute

Hi all, When we are using -mavx10.1-256 in command line and avx10.1-256 in target attribute together, zmm should never be generated. But current GCC will generate zmm since it wrongly enables EVEX512 for non-explicitly set AVX512. This patch will fix that issue. Regtested on x86_64-pc-linux-gnu.