1 //===-- Compile time cpu feature detection ----------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // This file lists target cpu features by introspecting compiler enabled 9 // preprocessor definitions. 10 //===----------------------------------------------------------------------===// 11 12 #ifndef LLVM_LIBC_SRC___SUPPORT_MACROS_PROPERTIES_CPU_FEATURES_H 13 #define LLVM_LIBC_SRC___SUPPORT_MACROS_PROPERTIES_CPU_FEATURES_H 14 15 #include "architectures.h" 16 17 #if defined(__SSE2__) 18 #define LIBC_TARGET_CPU_HAS_SSE2 19 #endif 20 21 #if defined(__SSE4_2__) 22 #define LIBC_TARGET_CPU_HAS_SSE4_2 23 #endif 24 25 #if defined(__AVX__) 26 #define LIBC_TARGET_CPU_HAS_AVX 27 #endif 28 29 #if defined(__AVX2__) 30 #define LIBC_TARGET_CPU_HAS_AVX2 31 #endif 32 33 #if defined(__AVX512F__) 34 #define LIBC_TARGET_CPU_HAS_AVX512F 35 #endif 36 37 #if defined(__AVX512BW__) 38 #define LIBC_TARGET_CPU_HAS_AVX512BW 39 #endif 40 41 #if defined(__ARM_FEATURE_FMA) || (defined(__AVX2__) && defined(__FMA__)) || \ 42 defined(__NVPTX__) || defined(__AMDGPU__) || defined(__LIBC_RISCV_USE_FMA) 43 #define LIBC_TARGET_CPU_HAS_FMA 44 #endif 45 46 #if defined(LIBC_TARGET_ARCH_IS_AARCH64) || \ 47 (defined(LIBC_TARGET_ARCH_IS_X86_64) && \ 48 defined(LIBC_TARGET_CPU_HAS_SSE4_2)) 49 #define LIBC_TARGET_CPU_HAS_NEAREST_INT 50 #endif 51 52 #endif // LLVM_LIBC_SRC___SUPPORT_MACROS_PROPERTIES_CPU_FEATURES_H 53