gcc/gcc ChangeLog tree-ssa-copyrename.c

[amacleod@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	amacleod@gcc.gnu.org	2004-09-16 18:45:33

Modified files:
	gcc            : ChangeLog tree-ssa-copyrename.c 

Log message:
	2004-09-16  Andrew MacLeod  <amacleod@redhat.com>
	
	PR tree-optimization/17517
	* tree-ssa-copyrename.c (copy_rename_partition_coalesce): Don't
	coalesce same-root variables without checking for abnormal PHI usage.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.5480&r2=2.5481
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-copyrename.c.diff?cvsroot=gcc&r1=2.15&r2=2.16