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[Bug rtl-optimization/56181] [4.8 Regression] ICE in verify_loop_structure, at cfgloop.c:1581 with -ftracer
- 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, 06 Feb 2013 15:54:43 +0000
- Subject: [Bug rtl-optimization/56181] [4.8 Regression] ICE in verify_loop_structure, at cfgloop.c:1581 with -ftracer
- Auto-submitted: auto-generated
- References: <bug-56181-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56181
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #29369|0 |1
is obsolete| |
--- Comment #11 from Richard Biener <rguenth at gcc dot gnu.org> 2013-02-06 15:54:43 UTC ---
Created attachment 29371
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29371
final patch
This is what I am considering seriously. It adds the dumping (but we don't
have info on the BB index of removed loops - bah), and also moves loop removal
to fix_loop_structure again.
It doesn't fix IRAs (pre-existing) ugliness.
The previous patch passed bootstrap, I'm giving this one full testing
(it co-incidentially fixes the bug as well).