re PR tree-optimization/62291 (PRE uses too much memory and compile-time)

re PR tree-optimization/62291 (PRE uses too much memory and compile-time)

2014-08-29  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/62291
	* tree-ssa-pre.c (sorted_array_from_bitmap_set): Reserve
	exactly the vector size needed and use quick_push.
	(phi_translate_1): Adjust comment.
	(valid_in_sets): Remove block argument and remove pointless
	checking of NAMEs.
	(dependent_clean): Adjust for removal of block argument.
	(clean): Likewise.
	(compute_antic_aux): Likewise.
	(compute_partial_antic_aux): Likewise.

From-SVN: r214727