Author: Simon Pilgrim Date: 2025-09-23T15:20:06Z New Revision: 1ed6be69121bacfddb2951293f69f367a5740360
URL: https://github.com/llvm/llvm-project/commit/1ed6be69121bacfddb2951293f69f367a5740360 DIFF: https://github.com/llvm/llvm-project/commit/1ed6be69121bacfddb2951293f69f367a5740360.diff LOG: [Headers][X86][F16C] All f16c methods are now constexpr (#160317) Merge the function attributes as they are all constexpr - the CVTPS2PH will stay as macros wrapping the builtin functions as we need to enforce compile time rounding mode constraints. Added: Modified: clang/lib/Headers/f16cintrin.h Removed: ################################################################################ diff --git a/clang/lib/Headers/f16cintrin.h b/clang/lib/Headers/f16cintrin.h index 83965334e2c9b..b6ca7088d3864 100644 --- a/clang/lib/Headers/f16cintrin.h +++ b/clang/lib/Headers/f16cintrin.h @@ -15,17 +15,20 @@ #define __F16CINTRIN_H /* Define the default attributes for the functions in this file. */ -#define __DEFAULT_FN_ATTRS128 \ - __attribute__((__always_inline__, __nodebug__, __target__("f16c"), __min_vector_width__(128))) -#define __DEFAULT_FN_ATTRS256 \ - __attribute__((__always_inline__, __nodebug__, __target__("f16c"), __min_vector_width__(256))) - #if defined(__cplusplus) && (__cplusplus >= 201103L) -#define __DEFAULT_FN_ATTRS128_CONSTEXPR __DEFAULT_FN_ATTRS128 constexpr -#define __DEFAULT_FN_ATTRS256_CONSTEXPR __DEFAULT_FN_ATTRS256 constexpr +#define __DEFAULT_FN_ATTRS128 \ + __attribute__((__always_inline__, __nodebug__, __target__("f16c"), \ + __min_vector_width__(128))) constexpr +#define __DEFAULT_FN_ATTRS256 \ + __attribute__((__always_inline__, __nodebug__, __target__("f16c"), \ + __min_vector_width__(256))) constexpr #else -#define __DEFAULT_FN_ATTRS128_CONSTEXPR __DEFAULT_FN_ATTRS128 -#define __DEFAULT_FN_ATTRS256_CONSTEXPR __DEFAULT_FN_ATTRS256 +#define __DEFAULT_FN_ATTRS128 \ + __attribute__((__always_inline__, __nodebug__, __target__("f16c"), \ + __min_vector_width__(128))) +#define __DEFAULT_FN_ATTRS256 \ + __attribute__((__always_inline__, __nodebug__, __target__("f16c"), \ + __min_vector_width__(256))) #endif /* NOTE: Intel documents the 128-bit versions of these as being in emmintrin.h, @@ -43,7 +46,7 @@ /// \param __a /// A 16-bit half-precision float value. /// \returns The converted 32-bit float value. -static __inline float __DEFAULT_FN_ATTRS128_CONSTEXPR +static __inline float __DEFAULT_FN_ATTRS128 _cvtsh_ss(unsigned short __a) { return (float)__builtin_bit_cast(__fp16, __a); @@ -112,7 +115,7 @@ _cvtsh_ss(unsigned short __a) /// A 128-bit vector containing 16-bit half-precision float values. The lower /// 64 bits are used in the conversion. /// \returns A 128-bit vector of [4 x float] containing converted float values. -static __inline __m128 __DEFAULT_FN_ATTRS128_CONSTEXPR +static __inline __m128 __DEFAULT_FN_ATTRS128 _mm_cvtph_ps(__m128i __a) { typedef __fp16 __v4fp16 __attribute__((__vector_size__(8))); @@ -159,7 +162,7 @@ _mm_cvtph_ps(__m128i __a) /// converted to 32-bit single-precision float values. /// \returns A vector of [8 x float] containing the converted 32-bit /// single-precision float values. -static __inline __m256 __DEFAULT_FN_ATTRS256_CONSTEXPR +static __inline __m256 __DEFAULT_FN_ATTRS256 _mm256_cvtph_ps(__m128i __a) { typedef __fp16 __v8fp16 __attribute__((__vector_size__(16), __aligned__(16))); @@ -169,7 +172,5 @@ _mm256_cvtph_ps(__m128i __a) #undef __DEFAULT_FN_ATTRS128 #undef __DEFAULT_FN_ATTRS256 -#undef __DEFAULT_FN_ATTRS128_CONSTEXPR -#undef __DEFAULT_FN_ATTRS256_CONSTEXPR #endif /* __F16CINTRIN_H */ _______________________________________________ llvm-branch-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
