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[Bug tree-optimization/71661] [7 Regression] wrong code at -O3
- 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: Thu, 06 Oct 2016 16:23:53 +0000
- Subject: [Bug tree-optimization/71661] [7 Regression] wrong code at -O3
- Auto-submitted: auto-generated
- References: <bug-71661-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71661
--- Comment #8 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Thu Oct 6 16:23:22 2016
New Revision: 240836
URL: https://gcc.gnu.org/viewcvs?rev=240836&root=gcc&view=rev
Log:
PR tree-optimization/71661
* tree-cfgcleanup.c (remove_forwarder_block_with_phi): Handle case when
removal of a forwarder exposes a new natural loop.
PR tree-optimization/71661
* gcc.dg/tree-ssa/pr71661.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/pr71661.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-cfgcleanup.c