FGFS-4.1/simgear
3
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Really use _mm_setzero_ps9) instead

Browse Source
This commit is contained in:
Erik Hofman
2016-12-16 11:04:49 +01:00
parent 203db3d095
commit fe73247b82
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
simgear/math/simd.hxx
+1 -1
View File
@@ -583,7 +583,7 @@ namespace simd4
{ {
// http://stackoverflow.com/questions/6996764/fastest-way-to-do-horizontal-float-vector-sum-on-x86 // http://stackoverflow.com/questions/6996764/fastest-way-to-do-horizontal-float-vector-sum-on-x86
inline double hsum_pd_sse(const __m128d vd[2]) { inline double hsum_pd_sse(const __m128d vd[2]) {
__m128 undef = undef; // Max doesn't have _mm_undefined_ps(); __m128 undef = _mm_setzero_ps();
__m128 shuftmp1 = _mm_movehl_ps(undef, _mm_castpd_ps(vd[0])); __m128 shuftmp1 = _mm_movehl_ps(undef, _mm_castpd_ps(vd[0]));
__m128 shuftmp2 = _mm_movehl_ps(undef, _mm_castpd_ps(vd[1])); __m128 shuftmp2 = _mm_movehl_ps(undef, _mm_castpd_ps(vd[1]));
__m128d shuf1 = _mm_castps_pd(shuftmp1); __m128d shuf1 = _mm_castps_pd(shuftmp1);