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[Bug tree-optimization/54985] [4.7/4.8 Regression] dom optimization erroneous remove conditional goto.
- From: "law at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 23 Oct 2012 20:33:52 +0000
- Subject: [Bug tree-optimization/54985] [4.7/4.8 Regression] dom optimization erroneous remove conditional goto.
- Auto-submitted: auto-generated
- References: <bug-54985-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54985
--- Comment #7 from Jeffrey A. Law <law at gcc dot gnu.org> 2012-10-23 20:33:52 UTC ---
Author: law
Date: Tue Oct 23 20:33:49 2012
New Revision: 192745
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192745
Log:
PR tree-optimization/54985
* tree-ssa-threadedge.c (cond_arg_set_in_bb): New function
* extracted
from thread_across_edge.
(thread_across_edge): Use it in all cases where we might thread
across a back edge.
* gcc.c-torture/execute/pr54985.c: New test.
Added:
trunk/gcc/testsuite/gcc.c-torture/execute/pr54985.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-threadedge.c