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r226801 - in /trunk/gcc: ChangeLog testsuite/Ch...


Author: rguenth
Date: Wed Aug 12 07:34:07 2015
New Revision: 226801

URL: https://gcc.gnu.org/viewcvs?rev=226801&root=gcc&view=rev
Log:
2015-08-12  Richard Biener  <rguenther@suse.de>

	* tree-ssa-pre.c (eliminate_dom_walker::before_dom_children):
	Eliminate edges marked as not executable by SCCVN.
	* tree-ssa-sccvn.c: Include gimple-iterator.h.
	(cond_dom_walker): Rename to sccvn_dom_walker.
	(sccvn_dom_walker::before_dom_children): Value-number defs
	of all stmts.
	(run_scc_vn): Remove loop value-numbering all SSA names.
	Drop not visited SSA names to varying.

	* gcc.dg/tree-ssa/ssa-fre-43.c: Adjust.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-43.c
    trunk/gcc/tree-ssa-pre.c
    trunk/gcc/tree-ssa-sccvn.c


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