r238078 - in /trunk/gcc: ChangeLog tree-ssa-pre...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Thu Jul  7 07:43:35 2016
New Revision: 238078

URL: https://gcc.gnu.org/viewcvs?rev=238078&root=gcc&view=rev
Log:
2016-07-07  Richard Biener  <rguenther@suse.de>

	* tree-ssa-pre.c: Include alias.h.
	(compute_avail): If we have multiple VN_REFERENCEs with the
	same hashtable entry adjust that to make it a valid replacement
	for all of them with respect to alignment and aliasing
	when doing insertion.
	* tree-ssa-sccvn.h (vn_reference_operands_for_lookup): Declare.
	* tree-ssa-sccvn.c (vn_reference_operands_for_lookup): New function.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-ssa-pre.c
    trunk/gcc/tree-ssa-sccvn.c
    trunk/gcc/tree-ssa-sccvn.h