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[Bug ipa/65076] [5 Regression] 16% tramp3d-v4.cpp compile time regression
- From: "trippels at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 16 Feb 2015 13:22:07 +0000
- Subject: [Bug ipa/65076] [5 Regression] 16% tramp3d-v4.cpp compile time regression
- Auto-submitted: auto-generated
- References: <bug-65076-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65076
--- Comment #2 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #1)
> So it's either time spent in the inliner (unlikely, though the patch has an
> extra update_callee_keys call) or different (early) inlining decisions.
>
> I remember you saying that without LTO/PGO-ing GCC the difference is a lot
> smaller?
No, with --disable-bootstrap it still goes from 27.133 (r219451)
to 31.116 (r219452).