2007-10-04  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/33627
	* tree-gimple.h (canonicalize_cond_expr_cond): Declare.
	* tree-gimple.c (canonicalize_cond_expr_cond): New function,
	split out from ...
	* tree-ssa-forwprop.c (combine_cond_expr_cond): ... here.
	* tree-ssa-ifcombine.c (ifcombine_iforif): Use it.

	* g++.dg/torture/pr33627.C: New testcase.

From-SVN: r129004