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[Bug tree-optimization/55334] [4.8 Regression] mgrid regression (ipa-cp disables vectorization)
- 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, 07 Dec 2012 10:11:26 +0000
- Subject: [Bug tree-optimization/55334] [4.8 Regression] mgrid regression (ipa-cp disables vectorization)
- Auto-submitted: auto-generated
- References: <bug-55334-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55334
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Status|NEW |ASSIGNED
AssignedTo|unassigned at gcc dot |rguenth at gcc dot gnu.org
|gnu.org |
--- Comment #14 from Richard Biener <rguenth at gcc dot gnu.org> 2012-12-07 10:11:26 UTC ---
Let me have a look here. I think the issue is that IPA-CP removes Fortran
restrict argument handling and exposes DECLs that data-ref analysis is
not handling very well. Thus, it effectively drops "restrict". Maybe it
simply shouldn't do that.