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[Bug tree-optimization/80520] [7/8 Regression] Performance regression from missing if-conversion
- 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: Wed, 26 Apr 2017 08:33:26 +0000
- Subject: [Bug tree-optimization/80520] [7/8 Regression] Performance regression from missing if-conversion
- Auto-submitted: auto-generated
- References: <bug-80520-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80520
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
Target Milestone|--- |7.2
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Looks like again (from just the quoted dumps) path splitting removes the RTL
if-conversion opportunity here. Of course just because the testcase wraps
the computation in a loop that does nothing interesting.