This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/27283] [4.2 regression] ICE: SSA corruption - Conflict across an abnormal edge
- From: "rakdver at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 1 May 2006 20:06:07 -0000
- Subject: [Bug tree-optimization/27283] [4.2 regression] ICE: SSA corruption - Conflict across an abnormal edge
- References: <bug-27283-12387@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from rakdver at gcc dot gnu dot org 2006-05-01 20:06 -------
Subject: Bug 27283
Author: rakdver
Date: Mon May 1 20:05:57 2006
New Revision: 113427
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=113427
Log:
PR tree-optimization/27283
* tree-ssa-loop-ivopts.c (struct nfe_cache_elt): Store just trees,
not whole # of iteration descriptions.
(niter_for_exit): Return just # of iterations. Fail if # of iterations
uses abnormal ssa name.
(niter_for_single_dom_exit): Ditto.
(find_induction_variables, may_eliminate_iv): Expect niter_for_exit to
return just the number of iterations.
* g++.dg/tree-ssa/pr27283.C: New test.
Added:
trunk/gcc/testsuite/g++.dg/tree-ssa/pr27283.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-loop-ivopts.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27283