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[Bug ipa/79966] [6/7 Regression] run time more than twice slower when using -fipa-cp-clone
- From: "rguenth 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 Mar 2017 12:57:55 +0000
- Subject: [Bug ipa/79966] [6/7 Regression] run time more than twice slower when using -fipa-cp-clone
- Auto-submitted: auto-generated
- References: <bug-79966-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79966
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
CC| |hubicka at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Inlining difference shows:
Inlining mysum to tp_sum with frequency 1000
Inlining tp_sum to runtptests with frequency 99000
Inlining mysum to runtptests with frequency 100000
vs. just
Inlining mysum.constprop to tp_sum with frequency 1000
We don't even consider to inline tp_sum when -fipa-cp-clone is enabled.