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[Bug tree-optimization/69347] [6 regression] excessive compile time with -O2
- 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: Fri, 22 Jan 2016 20:19:31 +0000
- Subject: [Bug tree-optimization/69347] [6 regression] excessive compile time with -O2
- Auto-submitted: auto-generated
- References: <bug-69347-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69347
--- Comment #15 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Fri Jan 22 20:18:59 2016
New Revision: 232745
URL: https://gcc.gnu.org/viewcvs?rev=232745&root=gcc&view=rev
Log:
PR middle-end/69347
* tree-ssa-dom.c (back_propagate_equivalences): Factored out of
record_temporary_equivalences. Rewritten to avoid unnecessary calls
into dominated_by_p.
(cprop_into_successor_phis): Avoid unnecessary tests.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-ssa-dom.c