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[Bug rtl-optimization/51771] trans-mem: abnormal edges get lost or corrupted
- From: "aldyh at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 01 Jun 2012 16:46:27 +0000
- Subject: [Bug rtl-optimization/51771] trans-mem: abnormal edges get lost or corrupted
- Auto-submitted: auto-generated
- References: <bug-51771-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51771
--- Comment #6 from Aldy Hernandez <aldyh at gcc dot gnu.org> 2012-06-01 16:46:27 UTC ---
Created attachment 27543
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27543
Proposed patch by Richard Henderson-- untested
This is an old, untested patch from rth that attempts to fix the problem
without the returns-twice hack. There is some overlap with Patrick Marlier's
attempt here:
http://gcc.gnu.org/ml/gcc/2012-01/msg00099.html
Patch provided here so we don't have to reanalyze everything if/when we revisit
this issue.