[turbofan] escape analysis supports arguments object and rest elements

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>
 #include <string>
 
 #include "src/bit-vector.h"
 #include "src/compiler/all-nodes.h"
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/js-operator.h"
 #include "src/compiler/node-properties.h"
 #include "src/compiler/node.h"
 #include "src/compiler/opcodes.h"
 #include "src/compiler/operator-properties.h"
 #include "src/compiler/operator.h"
 #include "src/compiler/schedule.h"
 #include "src/compiler/simplified-operator.h"
+#include "src/compiler/type-cache.h"
 #include "src/ostreams.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 
 class Verifier::Visitor {
  public:
   Visitor(Zone* z, Typing typed, CheckInputs check_inputs)
@@ skipping 454 matching lines @@
       for (int i = 0; i < 3; ++i) {
         CHECK(NodeProperties::GetValueInput(node, i)->opcode() ==
                   IrOpcode::kStateValues ||
               NodeProperties::GetValueInput(node, i)->opcode() ==
                   IrOpcode::kTypedStateValues);
       }
       break;
     }
     case IrOpcode::kStateValues:
     case IrOpcode::kTypedStateValues:
-    case IrOpcode::kArgumentsObjectState:
+    case IrOpcode::kArgumentsElementsState:
     case IrOpcode::kObjectState:
     case IrOpcode::kTypedObjectState:
       // TODO(jarin): what are the constraints on these?
       break;
     case IrOpcode::kCall:
       // TODO(rossberg): what are the constraints on these?
       break;
     case IrOpcode::kTailCall:
       // TODO(bmeurer): what are the constraints on these?
       break;
@@ skipping 446 matching lines @@
     case IrOpcode::kObjectIsNonCallable:
     case IrOpcode::kObjectIsNumber:
     case IrOpcode::kObjectIsReceiver:
     case IrOpcode::kObjectIsSmi:
     case IrOpcode::kObjectIsString:
     case IrOpcode::kObjectIsUndetectable:
     case IrOpcode::kArrayBufferWasNeutered:
       CheckValueInputIs(node, 0, Type::Any());
       CheckTypeIs(node, Type::Boolean());
       break;
-    case IrOpcode::kNewRestParameterElements:
+    case IrOpcode::kArgumentsLength:
+      CheckValueInputIs(node, 0, Type::ExternalPointer());
+      CheckTypeIs(node, TypeCache::Get().kArgumentsLengthType);
+      break;
+    case IrOpcode::kArgumentsFrame:
+      CheckTypeIs(node, Type::ExternalPointer());
+      break;
     case IrOpcode::kNewUnmappedArgumentsElements:
+      CheckValueInputIs(node, 0, Type::ExternalPointer());
+      CheckValueInputIs(node, 1, Type::Range(-Code::kMaxArguments,
+                                             Code::kMaxArguments, zone));
       CheckTypeIs(node, Type::OtherInternal());
       break;
     case IrOpcode::kAllocate:
       CheckValueInputIs(node, 0, Type::PlainNumber());
       break;
     case IrOpcode::kEnsureWritableFastElements:
       CheckValueInputIs(node, 0, Type::Any());
       CheckValueInputIs(node, 1, Type::Internal());
       CheckTypeIs(node, Type::Internal());
       break;
@@ skipping 734 matching lines @@
          replacement->op()->EffectOutputCount() > 0);
   DCHECK(!NodeProperties::IsFrameStateEdge(edge) ||
          replacement->opcode() == IrOpcode::kFrameState);
 }
 
 #endif  // DEBUG
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8