Add 'neozip/' from commit 'c2712b8a345191f6ed79558c089777df94590087'

git-subtree-dir: neozip
git-subtree-mainline: b1e34e861b5d732afe828d58aad2c638135061fd
git-subtree-split: c2712b8a345191f6ed79558c089777df94590087

1 files changed, 50 insertions, 0 deletions

diff --git a/neozip/arch/x86/chunkset_sse2.c b/neozip/arch/x86/chunkset_sse2.c
new file mode 100644
index 0000000000..633ab6e64f
--- /dev/null
+++ b/neozip/arch/x86/chunkset_sse2.c
@@ -0,0 +1,50 @@
+/* chunkset_sse2.c -- SSE2 inline functions to copy small data chunks.
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#ifdef X86_SSE2
+
+#include "zbuild.h"
+#include "zmemory.h"
+
+#include <immintrin.h>
+
+typedef __m128i chunk_t;
+
+#define HAVE_CHUNKMEMSET_2
+#define HAVE_CHUNKMEMSET_4
+#define HAVE_CHUNKMEMSET_8
+
+static inline void chunkmemset_2(uint8_t *from, chunk_t *chunk) {
+    *chunk = _mm_set1_epi16(zng_memread_2(from));
+}
+
+static inline void chunkmemset_4(uint8_t *from, chunk_t *chunk) {
+    *chunk = _mm_set1_epi32(zng_memread_4(from));
+}
+
+static inline void chunkmemset_8(uint8_t *from, chunk_t *chunk) {
+    *chunk = _mm_set1_epi64x(zng_memread_8(from));
+}
+
+static inline void loadchunk(uint8_t const *s, chunk_t *chunk) {
+    *chunk = _mm_loadu_si128((__m128i *)s);
+}
+
+static inline void storechunk(uint8_t *out, chunk_t *chunk) {
+    _mm_storeu_si128((__m128i *)out, *chunk);
+}
+
+#define CHUNKSIZE        chunksize_sse2
+#define CHUNKCOPY        chunkcopy_sse2
+#define CHUNKUNROLL      chunkunroll_sse2
+#define CHUNKMEMSET      chunkmemset_sse2
+#define CHUNKMEMSET_SAFE chunkmemset_safe_sse2
+
+#include "chunkset_tpl.h"
+
+#define INFLATE_FAST     inflate_fast_sse2
+
+#include "inffast_tpl.h"
+
+#endif