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diff --git a/lib/compress/zstd_lazy.c b/lib/compress/zstd_lazy.c
index 3d523e8472f68aba16009d91a10ff06bde0daaf2..6df85e47c916205f471bcda5f5d8929c91bcad1a 100644 (file)
--- a/lib/compress/zstd_lazy.c
+++ b/lib/compress/zstd_lazy.c
@@ -873,7 +873,7 @@ FORCE_INLINE_TEMPLATE size_t ZSTD_HcFindBestMatch_extDict_selectMLS (
 
 typedef U32 ZSTD_VecMask;   /* Clarifies when we are interacting with a U32 representing a mask of matches */
 
-#if !defined(ZSTD_NO_INTRINSICS) && defined(__SSE2__) /* SIMD SSE version */
+#if !defined(ZSTD_NO_INTRINSICS) && (defined(__SSE2__) ||defined(__AVX__)) /* SIMD SSE version*/
 
 #include <emmintrin.h>
 typedef __m128i ZSTD_Vec128;
@@ -894,7 +894,7 @@ static ZSTD_Vec128 ZSTD_Vec128_set8(BYTE val) {
 static ZSTD_VecMask ZSTD_Vec128_cmpMask8(ZSTD_Vec128 x, ZSTD_Vec128 y) {
   return (ZSTD_VecMask)_mm_movemask_epi8(_mm_cmpeq_epi8(x, y));
 }
-
+#if !defined(__AVX2__)
 typedef struct {
   __m128i fst;
   __m128i snd;
@@ -921,6 +921,28 @@ static ZSTD_VecMask ZSTD_Vec256_cmpMask8(ZSTD_Vec256 x, ZSTD_Vec256 y) {
   sndMask = ZSTD_Vec128_cmpMask8(x.snd, y.snd);
   return fstMask | (sndMask << 16);
 }
+#else//AVX2 
+typedef struct {
+       __m256i v;
+} ZSTD_Vec256;
+
+static ZSTD_Vec256 ZSTD_Vec256_read(const void* const ptr) {
+       ZSTD_Vec256 v;
+    v.v = _mm256_load_si256((const __m256i*)ptr);
+       return v;
+}
+
+static ZSTD_Vec256 ZSTD_Vec256_set8(BYTE val) {
+       ZSTD_Vec256 v;
+    v.v = _mm256_set1_epi32(val);
+       return v;
+}
+
+static ZSTD_VecMask ZSTD_Vec256_cmpMask8(ZSTD_Vec256 x, ZSTD_Vec256 y) {
+    return (ZSTD_VecMask)_mm256_movemask_epi8(_mm256_cmpeq_epi8(x.v, y.v));
+}
+
+#endif
 
 #elif !defined(ZSTD_NO_INTRINSICS) && defined(__ARM_NEON) /* SIMD ARM NEON Version */