re PR bootstrap/54876 (LTO bootstrap broken, streaming garbage-collected BLOCK)

2012-10-10  Richard Biener  <rguenther@suse.de>

	PR middle-end/54876
	* ipa-prop.c (prune_expression_for_jf_1): New function.
	(prune_expression_for_jf): Clear EXPR_LOCATION for all
	sub-expressions as well.

From-SVN: r192293