This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug ipa/65701] [5 Regression] r221530 makes 187.facerec drop with -Ofast -flto on bdver2
- From: "hubicka at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 10 Apr 2015 19:46:49 +0000
- Subject: [Bug ipa/65701] [5 Regression] r221530 makes 187.facerec drop with -Ofast -flto on bdver2
- Auto-submitted: auto-generated
- References: <bug-65701-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65701
--- Comment #15 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
It would be nice to test it on AVX enabled intel CPU. There are IMO at least
two things - first is the vectorizer oddity, second is that the fastest code
seems to happen with large-function-insns=1000.
I have no problem with adjusting this argument - it was largery unutuned for
years, but I would like to have some idea why the inlining hurts and if we can
fix that instead. Sadly the functions are quite big...