Propagator should call value_of_stmt.

When evaluating the LHS of a stmt, its more efficent/better to call
value_of_stmt directly rather than value_of_expr.

	* tree-ssa-propagate.cc (before_dom_children): Call value_of_stmt.

diff --git a/gcc/tree-ssa-propagate.cc b/gcc/tree-ssa-propagate.cc
index c10ffd9..5983f02 100644 (file)
--- a/gcc/tree-ssa-propagate.cc
+++ b/gcc/tree-ssa-propagate.cc
@@ -813,7 +813,7 @@ substitute_and_fold_dom_walker::before_dom_children (basic_block bb)
       tree lhs = gimple_get_lhs (stmt);
       if (lhs && TREE_CODE (lhs) == SSA_NAME)
        {
-         tree sprime = substitute_and_fold_engine->value_of_expr (lhs, stmt);
+         tree sprime = substitute_and_fold_engine->value_of_stmt (stmt, lhs);
          if (sprime
              && sprime != lhs
              && may_propagate_copy (lhs, sprime)