[Bug tree-optimization/87355] missed comparison optimizations (grep DFA, x86-64)

2021-12-25 Thread pinskia at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87355 Andrew Pinski changed: What|Removed |Added CC||pinskia at gcc dot gnu.org

[Bug tree-optimization/87355] missed comparison optimizations (grep DFA, x86-64)

2018-09-19 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87355 Jakub Jelinek changed: What|Removed |Added CC||jakub at gcc dot gnu.org --- Comment #3

[Bug tree-optimization/87355] missed comparison optimizations (grep DFA, x86-64)

2018-09-18 Thread glisse at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87355 --- Comment #2 from Marc Glisse --- For f, this is a classic case where gcc canonicalizes n>=100 as n>99, and thus cannot as easily merge it with the other comparison n==100. For g, n >= 103 || n == 100 || n == 101 || n == 102 is replaced in

[Bug tree-optimization/87355] missed comparison optimizations (grep DFA, x86-64)

2018-09-18 Thread pinskia at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87355 Andrew Pinski changed: What|Removed |Added Keywords||missed-optimization