r167072 - in /trunk/gcc: ChangeLog tree-ssa-ali...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Tue Nov 23 09:42:41 2010
New Revision: 167072

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=167072
Log:
2010-11-23  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-sccvn.c (vn_reference_lookup_3): Avoid doing work
	twice.  Avoid re-allocating the ops vector all the time.

2010-11-23  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-alias.c (refs_may_alias_p_1): Avoid calls to
	is_gimple_min_invariant, group tree code checks to allow
	combining them.
	(stmt_may_clobber_ref_p_1): Check for SSA_NAME instead
	of is_gimple_reg.

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