diff options
Diffstat (limited to 'absl/crc/internal/crc_memcpy.h')
| -rw-r--r-- | absl/crc/internal/crc_memcpy.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/absl/crc/internal/crc_memcpy.h b/absl/crc/internal/crc_memcpy.h index ae9cccad..4909d433 100644 --- a/absl/crc/internal/crc_memcpy.h +++ b/absl/crc/internal/crc_memcpy.h @@ -21,6 +21,13 @@ #include "absl/base/config.h" #include "absl/crc/crc32c.h" +// Defined if the class AcceleratedCrcMemcpyEngine exists. +#if defined(__x86_64__) && defined(__SSE4_2__) +#define ABSL_INTERNAL_HAVE_X86_64_ACCELERATED_CRC_MEMCPY_ENGINE 1 +#elif defined(_MSC_VER) && defined(__AVX__) +#define ABSL_INTERNAL_HAVE_X86_64_ACCELERATED_CRC_MEMCPY_ENGINE 1 +#endif + namespace absl { ABSL_NAMESPACE_BEGIN namespace crc_internal { |