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57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
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/* chunkset_sse2.c -- SSE2 inline functions to copy small data chunks.
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* For conditions of distribution and use, see copyright notice in zlib.h
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*/
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#include "zbuild.h"
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#ifdef X86_SSE2
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#include <immintrin.h>
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typedef __m128i chunk_t;
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#define CHUNK_SIZE 16
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#define HAVE_CHUNKMEMSET_2
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#define HAVE_CHUNKMEMSET_4
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#define HAVE_CHUNKMEMSET_8
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static inline void chunkmemset_2(uint8_t *from, chunk_t *chunk) {
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int16_t tmp;
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memcpy(&tmp, from, sizeof(tmp));
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*chunk = _mm_set1_epi16(tmp);
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}
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static inline void chunkmemset_4(uint8_t *from, chunk_t *chunk) {
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int32_t tmp;
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memcpy(&tmp, from, sizeof(tmp));
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*chunk = _mm_set1_epi32(tmp);
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}
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static inline void chunkmemset_8(uint8_t *from, chunk_t *chunk) {
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int64_t tmp;
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memcpy(&tmp, from, sizeof(tmp));
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*chunk = _mm_set1_epi64x(tmp);
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}
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static inline void loadchunk(uint8_t const *s, chunk_t *chunk) {
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*chunk = _mm_loadu_si128((__m128i *)s);
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}
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static inline void storechunk(uint8_t *out, chunk_t *chunk) {
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_mm_storeu_si128((__m128i *)out, *chunk);
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}
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#define CHUNKSIZE chunksize_sse2
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#define CHUNKCOPY chunkcopy_sse2
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#define CHUNKUNROLL chunkunroll_sse2
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#define CHUNKMEMSET chunkmemset_sse2
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#define CHUNKMEMSET_SAFE chunkmemset_safe_sse2
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#include "chunkset_tpl.h"
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#define INFLATE_FAST inflate_fast_sse2
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#include "inffast_tpl.h"
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#endif
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