[Bug tree-optimization/97770] [ICELAKE]suboptimal vectorization for vpopcntw/b/q

2021-06-21 Thread crazylht at gmail dot com via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97770 Hongtao.liu changed: What|Removed |Added Resolution|--- |FIXED Status|NEW

[Bug tree-optimization/97770] [ICELAKE]suboptimal vectorization for vpopcntw/b/q

2021-06-21 Thread cvs-commit at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97770 --- Comment #21 from CVS Commits --- The master branch has been updated by hongtao Liu : https://gcc.gnu.org/g:e08a125b208e717f99caa991052537305ca75b6a commit r12-1707-ge08a125b208e717f99caa991052537305ca75b6a Author: liuhongt Date: Wed Jun

[Bug tree-optimization/97770] [ICELAKE]suboptimal vectorization for vpopcntw/b/q

2021-06-11 Thread rguenth at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97770 --- Comment #20 from Richard Biener --- (In reply to H.J. Lu from comment #19) > (In reply to rguent...@suse.de from comment #18) > > > > That's going to work I guess but it will pessimize general optimization > > which no longer know this is co

[Bug tree-optimization/97770] [ICELAKE]suboptimal vectorization for vpopcntw/b/q

2021-06-10 Thread hjl.tools at gmail dot com via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97770 --- Comment #19 from H.J. Lu --- (In reply to rguent...@suse.de from comment #18) > > That's going to work I guess but it will pessimize general optimization > which no longer know this is computing popcount (not sure if the old > version expose

[Bug tree-optimization/97770] [ICELAKE]suboptimal vectorization for vpopcntw/b/q

2021-06-09 Thread rguenther at suse dot de via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97770 --- Comment #18 from rguenther at suse dot de --- On Thu, 10 Jun 2021, crazylht at gmail dot com wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97770 > > --- Comment #17 from Hongtao.liu --- > (In reply to Richard Biener from comment #1