https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106902
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|[11/12 Regression] Program |[11/12/13 Regression] |compiled with -O3 -mfma |Program compiled with -O3 |produces different result |-mfma produces different | |result Blocks| |53947 --- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to Martin Liška from comment #4) > Fixed on master with r13-1450-gd2a898666609452e. > Started with r11-4637-gf5e18dd9c7dacc96. I believe both a are unrelated. The fix possibly caused a missed optimization while the cause exposed some opportunity. More analysis is needed here. Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947 [Bug 53947] [meta-bug] vectorizer missed-optimizations