[turbofan] Run DeadCodeElimination together with the advanced reducers.

src/compiler/graph-reducer.cc

Index: src/compiler/graph-reducer.cc
diff --git a/src/compiler/graph-reducer.cc b/src/compiler/graph-reducer.cc
index 33d400b61e1a736505b3a67111ff7f1187e05ef5..80b40a7d9ac516f56aef21b6081d2f789ac329e2 100644
--- a/src/compiler/graph-reducer.cc
+++ b/src/compiler/graph-reducer.cc
@@ -22,11 +22,9 @@ enum class GraphReducer::State : uint8_t {
 };
 
 
-GraphReducer::GraphReducer(Zone* zone, Graph* graph, Node* dead_value,
-                           Node* dead_control)
+GraphReducer::GraphReducer(Zone* zone, Graph* graph, Node* dead)
     : graph_(graph),
-      dead_value_(dead_value),
-      dead_control_(dead_control),
+      dead_(dead),
       state_(graph, 4),
       reducers_(zone),
       revisit_(zone),
@@ -205,17 +203,15 @@ void GraphReducer::ReplaceWithValue(Node* node, Node* value, Node* effect,
 
   // Requires distinguishing between value, effect and control edges.
   for (Edge edge : node->use_edges()) {
-    Node* user = edge.from();
+    Node* const user = edge.from();
+    DCHECK(!user->IsDead());
     if (NodeProperties::IsControlEdge(edge)) {
       if (user->opcode() == IrOpcode::kIfSuccess) {
         Replace(user, control);
       } else if (user->opcode() == IrOpcode::kIfException) {
-        for (Edge e : user->use_edges()) {
-          if (NodeProperties::IsValueEdge(e)) e.UpdateTo(dead_value_);
-          if (NodeProperties::IsEffectEdge(e)) e.UpdateTo(graph()->start());
-          if (NodeProperties::IsControlEdge(e)) e.UpdateTo(dead_control_);
-        }
-        edge.UpdateTo(user);
+        DCHECK_NOT_NULL(dead_);
+        edge.UpdateTo(dead_);
+        Revisit(user);
       } else {
         UNREACHABLE();
       }