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.
This commit is contained in:
Andrew MacLeod 2022-03-31 09:36:59 -04:00
parent 9642d07c35
commit 5b1594dc2d

View file

@ -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)