X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvppinfra%2Fcrc32.h;h=fec67cd9757fbfe478b8d6736b901ae650800354;hb=7c03ed4;hp=242278ff24146c4611eaef6a41929361e64be21c;hpb=9e12d7763d542067a9725b86d40d07d6b7bd7433;p=vpp.git diff --git a/src/vppinfra/crc32.h b/src/vppinfra/crc32.h index 242278ff241..fec67cd9757 100644 --- a/src/vppinfra/crc32.h +++ b/src/vppinfra/crc32.h @@ -22,18 +22,23 @@ #define clib_crc32c_uses_intrinsics #include +#define crc32_u64 _mm_crc32_u64 +#define crc32_u32 _mm_crc32_u32 + static_always_inline u32 clib_crc32c (u8 * s, int len) { u32 v = 0; -#if __x86_64__ +#if defined(__x86_64__) for (; len >= 8; len -= 8, s += 8) v = _mm_crc32_u64 (v, *((u64 *) s)); #else /* workaround weird GCC bug when using _mm_crc32_u32 which happens with -O2 optimization */ - volatile ("":::"memory"); +#if !defined (__i686__) + asm volatile ("":::"memory"); +#endif #endif for (; len >= 4; len -= 4, s += 4) @@ -52,6 +57,10 @@ clib_crc32c (u8 * s, int len) #define clib_crc32c_uses_intrinsics #include + +#define crc32_u64 __crc32cd +#define crc32_u32 __crc32cw + static_always_inline u32 clib_crc32c (u8 * s, int len) {