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