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[Bug lto/44334] rnflow.f90 ~27% slower with -fwhole-program -flto after revision 159852
- From: "hubicka at ucw dot cz" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 23 Jan 2011 13:17:25 +0000
- Subject: [Bug lto/44334] rnflow.f90 ~27% slower with -fwhole-program -flto after revision 159852
- Auto-submitted: auto-generated
- References: <bug-44334-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44334
--- Comment #32 from Jan Hubicka <hubicka at ucw dot cz> 2011-01-23 13:14:56 UTC ---
> The relevant pr for comment #30 is pr45810 comment #9. The threshold for
> fatigue.f90 was322 before revision 169136 and is now 1520 (~x5).
Interesting. Do you know what function we fail to inline?
Can you attach ipa-inline dump from both settings?
I know that also c-ray wants to increase inline limits. I can increase them a
bit,
but not by factor of 5, since that would cause code size explosion at -O3.
(I did some tests on this two weeks ago)
Honza