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clean the commented asm instructions because now I'm sure

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the previous fix is ok
This commit is contained in:
Gael Guennebaud 2009-09-17 23:34:00 +02:00
parent f2737148b0
commit 5ba7fe3bee
1 changed files with 1 additions and 4 deletions
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5
Eigen/src/Core/arch/SSE/PacketMath.h
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@ -76,17 +76,14 @@ template<> struct ei_unpacket_traits<Packet4i> { typedef int type; enum {size
#ifdef __GNUC__
// Sometimes GCC implements _mm_set1_p* using multiple moves,
// that is inefficient :(
// TODO make sure the new solution using the shuffle/unpacklo is ok
// that is inefficient :( (e.g., see ei_gemm_pack_rhs)
template<> EIGEN_STRONG_INLINE Packet4f ei_pset1<float>(const float& from) {
Packet4f res = _mm_set_ss(from);
return _mm_shuffle_ps(res,res,0);
//asm("shufps $0, %[x], %[x]" : [x] "+x" (res) : );
}
template<> EIGEN_STRONG_INLINE Packet2d ei_pset1<double>(const double& from) {
Packet2d res = _mm_set_sd(from);
return _mm_unpacklo_pd(res,res);
// asm("unpcklpd %[x], %[x]" : [x] "+x" (res) : );
}
#else
template<> EIGEN_STRONG_INLINE Packet4f ei_pset1<float>(const float& from) { return _mm_set1_ps(from); }