re PR lto/42665 (Internal compiler exception in with gfortran when using  -fwhole-program -flto -fopenmp)

2010-01-14  Richard Guenther  <rguenther@suse.de>

	PR lto/42665
	* gimple.c (iterative_hash_gimple_type): Avoid hashing
	error_mark_node.

From-SVN: r155885