[turbofan] Add an operator to access the parent frame pointer

src/compiler/verifier.cc

 // Copyright 2014 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/verifier.h"
 
 #include <algorithm>
 #include <deque>
 #include <queue>
 #include <sstream>
@@ skipping 927 matching lines @@
     case IrOpcode::kTryTruncateFloat32ToInt64:
     case IrOpcode::kTryTruncateFloat64ToInt64:
     case IrOpcode::kTryTruncateFloat32ToUint64:
     case IrOpcode::kTryTruncateFloat64ToUint64:
     case IrOpcode::kFloat64ExtractLowWord32:
     case IrOpcode::kFloat64ExtractHighWord32:
     case IrOpcode::kFloat64InsertLowWord32:
     case IrOpcode::kFloat64InsertHighWord32:
     case IrOpcode::kLoadStackPointer:
     case IrOpcode::kLoadFramePointer:
+    case IrOpcode::kLoadParentFramePointer:
     case IrOpcode::kCheckedLoad:
     case IrOpcode::kCheckedStore:
       // TODO(rossberg): Check.
       break;
   }
 }  // NOLINT(readability/fn_size)
 
 
 void Verifier::Run(Graph* graph, Typing typing) {
   CHECK_NOT_NULL(graph->start());
@@ skipping 312 matching lines @@
          replacement->op()->EffectOutputCount() > 0);
   DCHECK(!NodeProperties::IsFrameStateEdge(edge) ||
          replacement->opcode() == IrOpcode::kFrameState);
 }
 
 #endif  // DEBUG
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8