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Reduce size of dctx by reutilizing dst buffer (#2751)

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* Reduce size of dctx by reutilizing dst buffer

Co-authored-by: Binh Vo <binhvo@fb.com>
This commit is contained in:
binhdvo
2021-10-25 10:38:01 -04:00
committed by GitHub
co-authored by Binh Vo
parent 0a794f5afe
commit 6a7ede3dfc
7 changed files with 666 additions and 106 deletions
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lib/common/zstd_internal.h
+1 -3
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@@ -181,7 +181,7 @@ static void ZSTD_copy16(void* dst, const void* src) {
#if defined(ZSTD_ARCH_ARM_NEON)
vst1q_u8((uint8_t*)dst, vld1q_u8((const uint8_t*)src));
#else
ZSTD_memcpy(dst, src, 16);
ZSTD_memmove(dst, src, 16);
#endif
}
#define COPY16(d,s) { ZSTD_copy16(d,s); d+=16; s+=16; }
@@ -210,8 +210,6 @@ void ZSTD_wildcopy(void* dst, const void* src, ptrdiff_t length, ZSTD_overlap_e
BYTE* op = (BYTE*)dst;
BYTE* const oend = op + length;
assert(diff >= 8 || (ovtype == ZSTD_no_overlap && diff <= -WILDCOPY_VECLEN));
if (ovtype == ZSTD_overlap_src_before_dst && diff < WILDCOPY_VECLEN) {
/* Handle short offset copies. */
do {