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pull/853/head
Jeffrey Walton 2019-05-28 20:18:58 -04:00
parent b61da7acfe
commit e40de18538
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1 changed files with 4 additions and 5 deletions
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blake2s_simd.cpp
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@ -8,9 +8,9 @@
// appropriate instructions sets in some build configurations. // appropriate instructions sets in some build configurations.
// The BLAKE2b and BLAKE2s numbers are consistent with the BLAKE2 team's // The BLAKE2b and BLAKE2s numbers are consistent with the BLAKE2 team's
// numbers. However, we have an Altivec/POWER7 implementation of BLAKE2s, // numbers. However, we have an Altivec/POWER8 implementation of BLAKE2s,
// and a POWER8 implementation of BLAKE2b (BLAKE2 is missing them). The // and a POWER8 implementation of BLAKE2b (BLAKE2 is missing them). The
// Altivec/POWER7 code is about 2x faster than C++ when using GCC 5.0 or // Altivec/POWER8 code is about 2x faster than C++ when using GCC 5.0 or
// above. The POWER8 code is about 2.5x faster than C++ when using GCC 5.0 // above. The POWER8 code is about 2.5x faster than C++ when using GCC 5.0
// or above. If you use GCC 4.0 (PowerMac) or GCC 4.8 (GCC Compile Farm) // or above. If you use GCC 4.0 (PowerMac) or GCC 4.8 (GCC Compile Farm)
// then the PowerPC code will be slower than C++. Be sure to use GCC 5.0 // then the PowerPC code will be slower than C++. Be sure to use GCC 5.0
@ -38,7 +38,6 @@
// https://github.com/weidai11/cryptopp/issues/743 // https://github.com/weidai11/cryptopp/issues/743
#if defined(__xlC__) && (__xlC__ < 0x0d01) #if defined(__xlC__) && (__xlC__ < 0x0d01)
# define CRYPTOPP_DISABLE_ALTIVEC 1 # define CRYPTOPP_DISABLE_ALTIVEC 1
# undef CRYPTOPP_POWER7_AVAILABLE
# undef CRYPTOPP_POWER8_AVAILABLE # undef CRYPTOPP_POWER8_AVAILABLE
# undef CRYPTOPP_ALTIVEC_AVAILABLE # undef CRYPTOPP_ALTIVEC_AVAILABLE
#endif #endif
@ -863,10 +862,10 @@ uint32x4_p VectorSet32<3,1,3,1>(const uint32x4_p a, const uint32x4_p b,
return VecPermute(a, c, mask); return VecPermute(a, c, mask);
} }
// BLAKE2_Compress32_CORE will use either POWER7 or ALTIVEC, // BLAKE2_Compress32_CORE will use either POWER8 or ALTIVEC,
// depending on the flags used to compile this source file. The // depending on the flags used to compile this source file. The
// abstractions are handled in VecLoad, VecStore and friends. In // abstractions are handled in VecLoad, VecStore and friends. In
// the future we may to provide both POWER7 or ALTIVEC at the same // the future we may provide both POWER8 or ALTIVEC at the same
// time to better support distros. // time to better support distros.
void BLAKE2_Compress32_CORE(const byte* input, BLAKE2s_State& state) void BLAKE2_Compress32_CORE(const byte* input, BLAKE2s_State& state)
{ {