tree-ssa-alias.c (refs_may_alias_p_1): Check for is_gimple_min_invariant rather…

tree-ssa-alias.c (refs_may_alias_p_1): Check for is_gimple_min_invariant rather than CONSTANT_CLASS_P so that...

2009-04-07  Martin Jambor  <mjambor@suse.cz>

	* tree-ssa-alias.c (refs_may_alias_p_1): Check for
	is_gimple_min_invariant rather than CONSTANT_CLASS_P so that invariant
	ADDR_EXPRS are include too.

From-SVN: r145685

gcc/ChangeLog

+2009-04-07  Martin Jambor  <mjambor@suse.cz>
+
+	* tree-ssa-alias.c (refs_may_alias_p_1): Check for
+	is_gimple_min_invariant rather than CONSTANT_CLASS_P so that invariant
+	ADDR_EXPRS are include too.
+
 2009-04-07  Richard Guenther  <rguenther@suse.de>
 
 	* tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Non-aliased

gcc/tree-ssa-alias.c

@@ -688,9 +688,9 @@ refs_may_alias_p_1 (tree ref1, tree ref2)
      *D.1663_44 = VIEW_CONVERT_EXPR<struct DB_LSN>(__tmp$B0F64_59);
      which is seen as a struct copy.  */
   if (TREE_CODE (base1) == SSA_NAME
-      || CONSTANT_CLASS_P (base1)
       || TREE_CODE (base2) == SSA_NAME
-      || CONSTANT_CLASS_P (base2))
+      || is_gimple_min_invariant (base1)
+      || is_gimple_min_invariant (base2))
     return false;
 
   var1_p = SSA_VAR_P (base1);