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| author | Pieter Wuille <pieter.wuille@gmail.com> | 2017-09-27 01:45:12 -0700 |
|---|---|---|
| committer | Pieter Wuille <pieter.wuille@gmail.com> | 2018-05-29 14:18:05 -0700 |
| commit | 4437d6e1f3107a20a8c7b66be8b4b972a82e3b28 (patch) | |
| tree | 95478beda4c9b292bea394ed103547437aa79a75 /configure.ac | |
| parent | 230294bf5fdeba7213471cd0b795fb7aa36e5717 (diff) | |
| download | bitcoin-4437d6e1f3107a20a8c7b66be8b4b972a82e3b28.tar.xz | |
8-way AVX2 implementation for double SHA256 on 64-byte inputs
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 7396ac74e8..42d8bb76ea 100644 --- a/configure.ac +++ b/configure.ac @@ -305,6 +305,7 @@ fi # compatibility. AX_CHECK_COMPILE_FLAG([-msse4.2],[[SSE42_CXXFLAGS="-msse4.2"]],,[[$CXXFLAG_WERROR]]) AX_CHECK_COMPILE_FLAG([-msse4.1],[[SSE41_CXXFLAGS="-msse4.1"]],,[[$CXXFLAG_WERROR]]) +AX_CHECK_COMPILE_FLAG([-mavx -mavx2],[[AVX2_CXXFLAGS="-mavx -mavx2"]],,[[$CXXFLAG_WERROR]]) TEMP_CXXFLAGS="$CXXFLAGS" CXXFLAGS="$CXXFLAGS $SSE42_CXXFLAGS" @@ -347,6 +348,25 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ ) CXXFLAGS="$TEMP_CXXFLAGS" +TEMP_CXXFLAGS="$CXXFLAGS" +CXXFLAGS="$CXXFLAGS $AVX2_CXXFLAGS" +AC_MSG_CHECKING(for AVX2 intrinsics) +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ + #include <stdint.h> + #if defined(_MSC_VER) + #include <immintrin.h> + #elif defined(__GNUC__) && defined(__AVX2__) + #include <x86intrin.h> + #endif + ]],[[ + __m256i l = _mm256_set1_epi32(0); + return _mm256_extract_epi32(l, 7); + ]])], + [ AC_MSG_RESULT(yes); enable_avx2=yes; AC_DEFINE(ENABLE_AVX2, 1, [Define this symbol to build code that uses AVX2 intrinsics]) ], + [ AC_MSG_RESULT(no)] +) +CXXFLAGS="$TEMP_CXXFLAGS" + CPPFLAGS="$CPPFLAGS -DHAVE_BUILD_INFO -D__STDC_FORMAT_MACROS" AC_ARG_WITH([utils], @@ -1266,6 +1286,7 @@ AM_CONDITIONAL([GLIBC_BACK_COMPAT],[test x$use_glibc_compat = xyes]) AM_CONDITIONAL([HARDEN],[test x$use_hardening = xyes]) AM_CONDITIONAL([ENABLE_HWCRC32],[test x$enable_hwcrc32 = xyes]) AM_CONDITIONAL([ENABLE_SSE41],[test x$enable_sse41 = xyes]) +AM_CONDITIONAL([ENABLE_AVX2],[test x$enable_avx2 = xyes]) AM_CONDITIONAL([USE_ASM],[test x$use_asm = xyes]) AC_DEFINE(CLIENT_VERSION_MAJOR, _CLIENT_VERSION_MAJOR, [Major version]) @@ -1305,6 +1326,7 @@ AC_SUBST(SANITIZER_CXXFLAGS) AC_SUBST(SANITIZER_LDFLAGS) AC_SUBST(SSE42_CXXFLAGS) AC_SUBST(SSE41_CXXFLAGS) +AC_SUBST(AVX2_CXXFLAGS) AC_SUBST(LIBTOOL_APP_LDFLAGS) AC_SUBST(USE_UPNP) AC_SUBST(USE_QRCODE) |