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prefetch are noops on VSX

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This commit is contained in:
Konstantinos Margaritis 2014-09-21 11:24:30 +00:00
parent c0205ca4af
commit 974fe38ca3
1 changed files with 11 additions and 3 deletions
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14
Eigen/src/Core/arch/AltiVec/PacketMath.h
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@ -28,7 +28,7 @@ namespace internal {
// NOTE Altivec has 32 registers, but Eigen only accepts a value of 8 or 16
#ifndef EIGEN_ARCH_DEFAULT_NUMBER_OF_REGISTERS
#define EIGEN_ARCH_DEFAULT_NUMBER_OF_REGISTERS 16
#define EIGEN_ARCH_DEFAULT_NUMBER_OF_REGISTERS 32
#endif
typedef __vector float Packet4f;
@ -482,8 +482,16 @@ template<> EIGEN_STRONG_INLINE void pstoreu<float>(float* to, const Packet4f&
}
#endif
template<> EIGEN_STRONG_INLINE void prefetch<float>(const float* addr) { vec_dstt(addr, DST_CTRL(2,2,32), DST_CHAN); }
template<> EIGEN_STRONG_INLINE void prefetch<int>(const int* addr) { vec_dstt(addr, DST_CTRL(2,2,32), DST_CHAN); }
template<> EIGEN_STRONG_INLINE void prefetch<float>(const float* addr) {
#ifndef __VSX__
vec_dstt(addr, DST_CTRL(2,2,32), DST_CHAN);
#endif
}
template<> EIGEN_STRONG_INLINE void prefetch<int>(const int* addr) {
#ifndef __VSX__
vec_dstt(addr, DST_CTRL(2,2,32), DST_CHAN);
#endif
}
template<> EIGEN_STRONG_INLINE float pfirst<Packet4f>(const Packet4f& a) { float EIGEN_ALIGN16 x[4]; vec_st(a, 0, x); return x[0]; }
template<> EIGEN_STRONG_INLINE int pfirst<Packet4i>(const Packet4i& a) { int EIGEN_ALIGN16 x[4]; vec_st(a, 0, x); return x[0]; }