r220960 - in /branches/gcc-4_8-branch/gcc: Chan...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Wed Feb 25 10:28:01 2015
New Revision: 220960

URL: https://gcc.gnu.org/viewcvs?rev=220960&root=gcc&view=rev
Log:
2015-02-25  Richard Biener  <rguenther@suse.de>

	Backport from mainline
	2015-02-16  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/63593
	* tree-predcom.c (execute_pred_commoning_chain): Delay removing
	stmts and releasing SSA names until...
	(execute_pred_commoning): ... after processing all chains.

	* gcc.dg/pr63593.c: New testcase.

	2015-02-18  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/65063
	* tree-predcom.c (determine_unroll_factor): Return 1 if we
	have replaced looparound PHIs.

	* gcc.dg/pr65063.c: New testcase.

Added:
    branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/pr63593.c
    branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/pr65063.c
Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_8-branch/gcc/tree-predcom.c