[turbofan] Remove eager frame state from call nodes.

src/compiler/node-properties.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/js-operator.h"
 #include "src/compiler/linkage.h"
 #include "src/compiler/node-properties.h"
 #include "src/compiler/operator-properties.h"
@@ skipping 162 matching lines @@
 
 // static
 void NodeProperties::ReplaceFrameStateInput(Node* node, int index,
                                             Node* frame_state) {
   DCHECK_LT(index, OperatorProperties::GetFrameStateInputCount(node->op()));
   node->ReplaceInput(FirstFrameStateIndex(node) + index, frame_state);
 }
 
 
 // static
-void NodeProperties::RemoveFrameStateInput(Node* node, int index) {
-  DCHECK_LT(index, OperatorProperties::GetFrameStateInputCount(node->op()));
-  node->RemoveInput(FirstFrameStateIndex(node) + index);
-}
-
-
-// static
 void NodeProperties::RemoveNonValueInputs(Node* node) {
   node->TrimInputCount(node->op()->ValueInputCount());
 }
 
 
 // static
 void NodeProperties::RemoveValueInputs(Node* node) {
   int value_input_count = node->op()->ValueInputCount();
   while (--value_input_count >= 0) {
     node->RemoveInput(value_input_count);
@@ skipping 36 matching lines @@
 
 
 // static
 void NodeProperties::ChangeOp(Node* node, const Operator* new_op) {
   node->set_op(new_op);
   Verifier::VerifyNode(node);
 }
 
 
 // static
+Node* NodeProperties::FindFrameStateBefore(Node* node) {
+  Node* effect = NodeProperties::GetEffectInput(node);
+  while (effect->opcode() != IrOpcode::kCheckpoint) {
+    DCHECK_EQ(1, effect->op()->EffectInputCount());
+    effect = NodeProperties::GetEffectInput(effect);
+  }
+  Node* frame_state = GetFrameStateInput(effect, 0);
+  return frame_state;
+}
+
+// static
 Node* NodeProperties::FindProjection(Node* node, size_t projection_index) {
   for (auto use : node->uses()) {
     if (use->opcode() == IrOpcode::kProjection &&
         ProjectionIndexOf(use->op()) == projection_index) {
       return use;
     }
   }
   return nullptr;
 }
 
@@ skipping 164 matching lines @@
 // static
 bool NodeProperties::IsInputRange(Edge edge, int first, int num) {
   if (num == 0) return false;
   int const index = edge.index();
   return first <= index && index < first + num;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8