[Bug tree-optimization/45685] [4.6/4.7 Regression] missed conditional move opportunity in loop

2011-12-02 Thread rguenth at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45685 --- Comment #20 from Richard Guenther rguenth at gcc dot gnu.org 2011-12-02 09:52:27 UTC --- Probably a better place than phi-opt would be RTL expansion (thus, out-of-SSA for the PHI nodes) where based on target cost those constants could be

[Bug tree-optimization/45685] [4.6/4.7 Regression] missed conditional move opportunity in loop

2011-12-01 Thread jakub at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45685 --- Comment #18 from Jakub Jelinek jakub at gcc dot gnu.org 2011-12-01 22:41:46 UTC --- What about stage3 material?

[Bug tree-optimization/45685] [4.6/4.7 Regression] missed conditional move opportunity in loop

2011-12-01 Thread law at redhat dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45685 --- Comment #19 from Jeffrey A. Law law at redhat dot com 2011-12-02 05:26:00 UTC --- I did some runtime testing on this shortly after 4.7 stage1 opened; the net result was actually a regression. I didn't delve into why due to time constraints.