From 05309782ab87eb3b81db1ac0e6dda02b0dac6a7d Mon Sep 17 00:00:00 2001 From: Chaitanya Koparkar Date: Tue, 2 Sep 2025 11:03:17 -0400 Subject: [PATCH] [X86] Clear EVEX512 feature for 128-bit and 256-bit FMA intrinsics This matches the corresponding features defined in avx512vlintrin.h. --- clang/lib/Headers/fmaintrin.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/clang/lib/Headers/fmaintrin.h b/clang/lib/Headers/fmaintrin.h index d8ea489022b8f..a1c117e5f9d89 100644 --- a/clang/lib/Headers/fmaintrin.h +++ b/clang/lib/Headers/fmaintrin.h @@ -15,8 +15,12 @@ #define __FMAINTRIN_H /* Define the default attributes for the functions in this file. */ -#define __DEFAULT_FN_ATTRS128 __attribute__((__always_inline__, __nodebug__, __target__("fma"), __min_vector_width__(128))) -#define __DEFAULT_FN_ATTRS256 __attribute__((__always_inline__, __nodebug__, __target__("fma"), __min_vector_width__(256))) +#define __DEFAULT_FN_ATTRS128 \ + __attribute__((__always_inline__, __nodebug__, __target__("fma,no-evex512"), \ + __min_vector_width__(128))) +#define __DEFAULT_FN_ATTRS256 \ + __attribute__((__always_inline__, __nodebug__, __target__("fma,no-evex512"), \ + __min_vector_width__(256))) #if defined(__cplusplus) && (__cplusplus >= 201103L) #define __DEFAULT_FN_ATTRS128_CONSTEXPR __DEFAULT_FN_ATTRS128 constexpr