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[Bug tree-optimization/68523] CFG Expansion Computes Incorrect Block Frequencies for Nested Loops
- From: "segher at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 06 Mar 2018 13:54:10 +0000
- Subject: [Bug tree-optimization/68523] CFG Expansion Computes Incorrect Block Frequencies for Nested Loops
- Auto-submitted: auto-generated
- References: <bug-68523-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68523
Segher Boessenkool <segher at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #3 from Segher Boessenkool <segher at gcc dot gnu.org> ---
The constant loop is now completely optimised away before expand; use
-fno-loop-interchange to prevent that.
Even with that I see no problem any more now, maybe the new frequency
stuff changed this?
Resolving as fixed.