diff options
| author |  Gael Guennebaud <g.gael@free.fr> | 2016-08-22 15:38:03 +0200 |
|---|---|---|
| committer | Gael Guennebaud <g.gael@free.fr> | 2016-08-22 15:38:03 +0200 |
| commit | 2d5731e40a1e5c720313d19a85f4d0eae7634e72 (patch) | |
| tree | ff45fabbb2427004d0f40466a0a65c85ab0228d4 /Eigen/src/Core | |
| parent | 49b005181aa9da2053dc826f4f018f4be21eab41 (diff) | |
bug #1270: bypass custom asm for pmadd and recent clang version
Diffstat (limited to 'Eigen/src/Core')
| -rw-r--r-- | Eigen/src/Core/arch/AVX/PacketMath.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Eigen/src/Core/arch/AVX/PacketMath.h b/Eigen/src/Core/arch/AVX/PacketMath.h index 4fec14f44..7014a6889 100644 --- a/Eigen/src/Core/arch/AVX/PacketMath.h +++ b/Eigen/src/Core/arch/AVX/PacketMath.h @@ -153,7 +153,7 @@ template<> EIGEN_STRONG_INLINE Packet8i pdiv<Packet8i>(const Packet8i& /*a*/, co #ifdef __FMA__ template<> EIGEN_STRONG_INLINE Packet8f pmadd(const Packet8f& a, const Packet8f& b, const Packet8f& c) { -#if EIGEN_COMP_GNUC || EIGEN_COMP_CLANG +#if ( EIGEN_COMP_GNUC_STRICT || (EIGEN_COMP_CLANG && (EIGEN_COMP_CLANG<308)) ) // clang stupidly generates a vfmadd213ps instruction plus some vmovaps on registers, // and gcc stupidly generates a vfmadd132ps instruction, // so let's enforce it to generate a vfmadd231ps instruction since the most common use case is to accumulate @@ -166,7 +166,7 @@ template<> EIGEN_STRONG_INLINE Packet8f pmadd(const Packet8f& a, const Packet8f& #endif } template<> EIGEN_STRONG_INLINE Packet4d pmadd(const Packet4d& a, const Packet4d& b, const Packet4d& c) { -#if EIGEN_COMP_GNUC || EIGEN_COMP_CLANG +#if ( EIGEN_COMP_GNUC_STRICT || (EIGEN_COMP_CLANG && (EIGEN_COMP_CLANG<308)) ) // see above Packet4d res = c; __asm__("vfmadd231pd %[a], %[b], %[c]" : [c] "+x" (res) : [a] "x" (a), [b] "x" (b)); |