diff options
Diffstat (limited to 'cipher/poly1305-internal.h')
| -rw-r--r-- | cipher/poly1305-internal.h | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/cipher/poly1305-internal.h b/cipher/poly1305-internal.h index d2c6b5cd..fa3fe75e 100644 --- a/cipher/poly1305-internal.h +++ b/cipher/poly1305-internal.h @@ -44,15 +44,37 @@ #define POLY1305_REF_ALIGNMENT sizeof(void *) +/* POLY1305_USE_SSE2 indicates whether to compile with AMD64 SSE2 code. */ +#undef POLY1305_USE_SSE2 +#if defined(__x86_64__) && defined(HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS) +# define POLY1305_USE_SSE2 1 +# define POLY1305_SSE2_BLOCKSIZE 32 +# define POLY1305_SSE2_STATESIZE 248 +# define POLY1305_SSE2_ALIGNMENT 16 +#endif + + /* Largest block-size used in any implementation (optimized implementations * might use block-size multiple of 16). */ -#define POLY1305_LARGEST_BLOCKSIZE POLY1305_REF_BLOCKSIZE +#ifdef POLY1305_USE_SSE2 +# define POLY1305_LARGEST_BLOCKSIZE POLY1305_SSE2_BLOCKSIZE +#else +# define POLY1305_LARGEST_BLOCKSIZE POLY1305_REF_BLOCKSIZE +#endif /* Largest state-size used in any implementation. */ -#define POLY1305_LARGEST_STATESIZE POLY1305_REF_STATESIZE +#ifdef POLY1305_USE_SSE2 +# define POLY1305_LARGEST_STATESIZE POLY1305_SSE2_STATESIZE +#else +# define POLY1305_LARGEST_STATESIZE POLY1305_REF_STATESIZE +#endif /* Minimum alignment for state pointer passed to implementations. */ -#define POLY1305_STATE_ALIGNMENT POLY1305_REF_ALIGNMENT +#ifdef POLY1305_USE_SSE2 +# define POLY1305_STATE_ALIGNMENT POLY1305_SSE2_ALIGNMENT +#else +# define POLY1305_STATE_ALIGNMENT POLY1305_REF_ALIGNMENT +#endif typedef struct poly1305_key_s |