[Bug rtl-optimization/67553] Saturating SSE/AVX instructions do not get optimized

2015-09-14 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67553 Richard Biener changed: What|Removed |Added Keywords||missed-optimization Target|

[Bug rtl-optimization/67553] Saturating SSE/AVX instructions do not get optimized

2015-09-11 Thread tmb99 at gmx dot net
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67553 --- Comment #2 from tmb99 at gmx dot net --- seems to be the same for most saturating instructions: __m128i v0 = _mm_setzero_si128(); __m128i v2 = _mm_setzero_si128(); __m128i sum = _mm_adds_epi16(v0,v2); __m128i dif = _mm_subs_epi8(v0,v2); __m12

[Bug rtl-optimization/67553] Saturating SSE/AVX instructions do not get optimized

2015-09-11 Thread glisse at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67553 Marc Glisse changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed|