re PR tree-optimization/72517 (436.cactusADM: More than 40% regression in O3 and Ofast on AMD bdver4 m/c.)

2016-07-27  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/72517
	* tree-vect-data-refs.c (vect_analyze_data_ref_dependences):
	Revert change to not compute read-read dependences.

From-SVN: r238783