re PR tree-optimization/47737 (wrong code with -funswitch-loops -fno-tree-dominator-opts -fgraphite-identity)

2011-02-18  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/47737
	* tree-ssa-loop-im.c (extract_true_false_args_from_phi): Fix
	edge dominance check.

From-SVN: r170272