re PR tree-optimization/60042 (vectorizer still does too many dependence tests for...

re PR tree-optimization/60042 (vectorizer still does too many dependence tests for himeno:jacobi)

2014-04-14  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/60042
	* tree-ssa-pre.c (inhibit_phi_insertion): Remove.
	(insert_into_preds_of_block): Do not prevent PHI insertion
	for REFERENCE exprs here ...
	(eliminate_dom_walker::before_dom_children): ... but prevent
	their use here under similar conditions when applied to the
	IL after PRE optimizations.

From-SVN: r209374