// +build amd64 package sha1 // #cgo CFLAGS: -DHAS_AVX2 // #include // #include // void sha1_transform(int32_t *hash, const char* input, size_t num_blocks); // void sha1_update_intel(int32_t *hash, const char* input, size_t num_blocks); import "C" import "unsafe" func blockAVX2(dig *digest, p []byte) { C.sha1_transform((*C.int32_t)(unsafe.Pointer(&dig.h[0])), (*C.char)(unsafe.Pointer(&p[0])), (C.size_t)(len(p)/chunk)) } func blockSSE3(dig *digest, p []byte) { C.sha1_update_intel((*C.int32_t)(unsafe.Pointer(&dig.h[0])), (*C.char)(unsafe.Pointer(&p[0])), (C.size_t)(len(p)/chunk)) }