tree-ssa-alias.c (find_used_portions): Consider taking the address as making the…

tree-ssa-alias.c (find_used_portions): Consider taking the address as making the variable not write-only.

2006-03-02  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-alias.c (find_used_portions): Consider taking
	the address as making the variable not write-only.

From-SVN: r111639

gcc/ChangeLog

+2006-03-02  Richard Guenther  <rguenther@suse.de>
+
+	* tree-ssa-alias.c (find_used_portions): Consider taking
+	the address as making the variable not write-only.
+
 2006-03-02  Nick Clifton  <nickc@redhat.com>
 
 	* config.gcc (default_use_cxa_atexit): Extend the description of

gcc/tree-ssa-alias.c

@@ -3071,6 +3071,8 @@ find_used_portions (tree *tp, int *walk_subtrees, void *lhs_p)
 	    up->minused = 0;
 	    up->maxused = TREE_INT_CST_LOW (DECL_SIZE (var));
 	    up->implicit_uses = true;
+	    if (!lhs_p)
+	      up->write_only = false;
 
 	    up_insert (uid, up);
 	    *walk_subtrees = 0;