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| author | shadchin <shadchin@yandex-team.com> | 2023-01-05 21:33:07 +0300 |
|---|---|---|
| committer | shadchin <shadchin@yandex-team.com> | 2023-01-05 21:33:07 +0300 |
| commit | 97c1b4fc326f4a9435bc743e56681bb148b17c37 (patch) | |
| tree | c7d8dd514d722f747f5c6584343aeeddd5d2f8be /contrib/libs/lzma/liblzma/common/memcmplen.h | |
| parent | d7b4c95518652104d51c915f0fd20fd3e954135c (diff) | |
| download | ydb-97c1b4fc326f4a9435bc743e56681bb148b17c37.tar.gz | |
Update contrib/libs/lzma to 5.4.0
Diffstat (limited to 'contrib/libs/lzma/liblzma/common/memcmplen.h')
| -rw-r--r-- | contrib/libs/lzma/liblzma/common/memcmplen.h | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/contrib/libs/lzma/liblzma/common/memcmplen.h b/contrib/libs/lzma/liblzma/common/memcmplen.h index dcfd8d6f89..5a481a02c9 100644 --- a/contrib/libs/lzma/liblzma/common/memcmplen.h +++ b/contrib/libs/lzma/liblzma/common/memcmplen.h @@ -51,10 +51,6 @@ lzma_memcmplen(const uint8_t *buf1, const uint8_t *buf2, || (defined(__INTEL_COMPILER) && defined(__x86_64__)) \ || (defined(__INTEL_COMPILER) && defined(_M_X64)) \ || (defined(_MSC_VER) && defined(_M_X64))) - // NOTE: This will use 64-bit unaligned access which - // TUKLIB_FAST_UNALIGNED_ACCESS wasn't meant to permit, but - // it's convenient here at least as long as it's x86-64 only. - // // I keep this x86-64 only for now since that's where I know this // to be a good method. This may be fine on other 64-bit CPUs too. // On big endian one should use xor instead of subtraction and switch @@ -80,12 +76,12 @@ lzma_memcmplen(const uint8_t *buf1, const uint8_t *buf2, #elif defined(TUKLIB_FAST_UNALIGNED_ACCESS) \ && defined(HAVE__MM_MOVEMASK_EPI8) \ - && ((defined(__GNUC__) && defined(__SSE2_MATH__)) \ - || (defined(__INTEL_COMPILER) && defined(__SSE2__)) \ + && (defined(__SSE2__) \ || (defined(_MSC_VER) && defined(_M_IX86_FP) \ && _M_IX86_FP >= 2)) - // NOTE: Like above, this will use 128-bit unaligned access which - // TUKLIB_FAST_UNALIGNED_ACCESS wasn't meant to permit. + // NOTE: This will use 128-bit unaligned access which + // TUKLIB_FAST_UNALIGNED_ACCESS wasn't meant to permit, + // but it's convenient here since this is x86-only. // // SSE2 version for 32-bit and 64-bit x86. On x86-64 the above // version is sometimes significantly faster and sometimes |