diff options
Diffstat (limited to 'absl/crc/internal/crc32_x86_arm_combined_simd.h')
| -rw-r--r-- | absl/crc/internal/crc32_x86_arm_combined_simd.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/absl/crc/internal/crc32_x86_arm_combined_simd.h b/absl/crc/internal/crc32_x86_arm_combined_simd.h index 59d71fd4..8f15ded3 100644 --- a/absl/crc/internal/crc32_x86_arm_combined_simd.h +++ b/absl/crc/internal/crc32_x86_arm_combined_simd.h @@ -25,12 +25,18 @@ // We define a translation layer for both x86 and ARM for the ease of use and // most performance gains. -// We need CRC (part of sse4.2) and PCLMULQDQ instructions. +// We need CRC (part of SSE 4.2) and PCLMULQDQ instructions. #if defined(__SSE4_2__) && defined(__PCLMUL__) #include <x86intrin.h> #define ABSL_CRC_INTERNAL_HAVE_X86_SIMD +#elif defined(_MSC_VER) && defined(__AVX__) + +// MSVC AVX (/arch:AVX) implies SSE 4.2 and PCLMULQDQ. +#include <intrin.h> +#define ABSL_CRC_INTERNAL_HAVE_X86_SIMD + #elif defined(__aarch64__) && defined(__LITTLE_ENDIAN__) && \ defined(__ARM_FEATURE_CRC32) && defined(__ARM_NEON) |