[turbofan] Some javascript operators are globally shared singletons.

src/compiler/js-generic-lowering.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/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph-inl.h"
 #include "src/compiler/js-generic-lowering.h"
 #include "src/compiler/machine-operator.h"
@@ skipping 263 matching lines @@
 }
 
 
 void JSGenericLowering::LowerJSLoadProperty(Node* node) {
   Callable callable = CodeFactory::KeyedLoadIC(isolate());
   ReplaceWithStubCall(node, callable, CallDescriptor::kPatchableCallSite);
 }
 
 
 void JSGenericLowering::LowerJSLoadNamed(Node* node) {
-  LoadNamedParameters p = OpParameter<LoadNamedParameters>(node);
-  Callable callable = CodeFactory::LoadIC(isolate(), p.contextual_mode);
-  PatchInsertInput(node, 1, jsgraph()->HeapConstant(p.name));
+  const LoadNamedParameters& p = LoadNamedParametersOf(node->op());
+  Callable callable = CodeFactory::LoadIC(isolate(), p.contextual_mode());
+  PatchInsertInput(node, 1, jsgraph()->HeapConstant(p.name()));
   ReplaceWithStubCall(node, callable, CallDescriptor::kPatchableCallSite);
 }
 
 
 void JSGenericLowering::LowerJSStoreProperty(Node* node) {
   StrictMode strict_mode = OpParameter<StrictMode>(node);
   Callable callable = CodeFactory::KeyedStoreIC(isolate(), strict_mode);
   ReplaceWithStubCall(node, callable, CallDescriptor::kPatchableCallSite);
 }
 
 
 void JSGenericLowering::LowerJSStoreNamed(Node* node) {
-  StoreNamedParameters params = OpParameter<StoreNamedParameters>(node);
-  Callable callable = CodeFactory::StoreIC(isolate(), params.strict_mode);
-  PatchInsertInput(node, 1, jsgraph()->HeapConstant(params.name));
+  const StoreNamedParameters& p = StoreNamedParametersOf(node->op());
+  Callable callable = CodeFactory::StoreIC(isolate(), p.strict_mode());
+  PatchInsertInput(node, 1, jsgraph()->HeapConstant(p.name()));
   ReplaceWithStubCall(node, callable, CallDescriptor::kPatchableCallSite);
 }
 
 
 void JSGenericLowering::LowerJSDeleteProperty(Node* node) {
   StrictMode strict_mode = OpParameter<StrictMode>(node);
   PatchInsertInput(node, 2, SmiConstant(strict_mode));
   ReplaceWithBuiltinCall(node, Builtins::DELETE, 3);
 }
 
@@ skipping 11 matching lines @@
   CallInterfaceDescriptor d = stub.GetCallInterfaceDescriptor();
   CallDescriptor* desc =
       linkage()->GetStubCallDescriptor(d, 0, FlagsForNode(node));
   Node* stub_code = CodeConstant(stub.GetCode());
   PatchInsertInput(node, 0, stub_code);
   PatchOperator(node, common()->Call(desc));
 }
 
 
 void JSGenericLowering::LowerJSLoadContext(Node* node) {
-  ContextAccess access = OpParameter<ContextAccess>(node);
+  const ContextAccess& access = ContextAccessOf(node->op());
   // TODO(mstarzinger): Use simplified operators instead of machine operators
   // here so that load/store optimization can be applied afterwards.
-  for (int i = 0; i < access.depth(); ++i) {
+  for (size_t i = 0; i < access.depth(); ++i) {
     node->ReplaceInput(
         0, graph()->NewNode(
                machine()->Load(kMachAnyTagged),
                NodeProperties::GetValueInput(node, 0),
                Int32Constant(Context::SlotOffset(Context::PREVIOUS_INDEX)),
                NodeProperties::GetEffectInput(node)));
   }
-  node->ReplaceInput(1, Int32Constant(Context::SlotOffset(access.index())));
+  node->ReplaceInput(
+      1, Int32Constant(Context::SlotOffset(static_cast<int>(access.index()))));
   PatchOperator(node, machine()->Load(kMachAnyTagged));
 }
 
 
 void JSGenericLowering::LowerJSStoreContext(Node* node) {
-  ContextAccess access = OpParameter<ContextAccess>(node);
+  const ContextAccess& access = ContextAccessOf(node->op());
   // TODO(mstarzinger): Use simplified operators instead of machine operators
   // here so that load/store optimization can be applied afterwards.
-  for (int i = 0; i < access.depth(); ++i) {
+  for (size_t i = 0; i < access.depth(); ++i) {
     node->ReplaceInput(
         0, graph()->NewNode(
                machine()->Load(kMachAnyTagged),
                NodeProperties::GetValueInput(node, 0),
                Int32Constant(Context::SlotOffset(Context::PREVIOUS_INDEX)),
                NodeProperties::GetEffectInput(node)));
   }
   node->ReplaceInput(2, NodeProperties::GetValueInput(node, 1));
-  node->ReplaceInput(1, Int32Constant(Context::SlotOffset(access.index())));
+  node->ReplaceInput(
+      1, Int32Constant(Context::SlotOffset(static_cast<int>(access.index()))));
   PatchOperator(node, machine()->Store(StoreRepresentation(kMachAnyTagged,
                                                            kFullWriteBarrier)));
 }
 
 
 void JSGenericLowering::LowerJSCallConstruct(Node* node) {
   int arity = OpParameter<int>(node);
   CallConstructStub stub(isolate(), NO_CALL_CONSTRUCTOR_FLAGS);
   CallInterfaceDescriptor d = stub.GetCallInterfaceDescriptor();
   CallDescriptor* desc =
       linkage()->GetStubCallDescriptor(d, arity, FlagsForNode(node));
   Node* stub_code = CodeConstant(stub.GetCode());
   Node* construct = NodeProperties::GetValueInput(node, 0);
   PatchInsertInput(node, 0, stub_code);
   PatchInsertInput(node, 1, Int32Constant(arity - 1));
   PatchInsertInput(node, 2, construct);
   PatchInsertInput(node, 3, jsgraph()->UndefinedConstant());
   PatchOperator(node, common()->Call(desc));
 }
 
 
 void JSGenericLowering::LowerJSCallFunction(Node* node) {
-  CallParameters p = OpParameter<CallParameters>(node);
-  CallFunctionStub stub(isolate(), p.arity - 2, p.flags);
+  const CallFunctionParameters& p = CallFunctionParametersOf(node->op());
+  CallFunctionStub stub(isolate(), static_cast<int>(p.arity() - 2), p.flags());
   CallInterfaceDescriptor d = stub.GetCallInterfaceDescriptor();
-  CallDescriptor* desc =
-      linkage()->GetStubCallDescriptor(d, p.arity - 1, FlagsForNode(node));
+  CallDescriptor* desc = linkage()->GetStubCallDescriptor(
+      d, static_cast<int>(p.arity() - 1), FlagsForNode(node));
   Node* stub_code = CodeConstant(stub.GetCode());
   PatchInsertInput(node, 0, stub_code);
   PatchOperator(node, common()->Call(desc));
 }
 
 
 void JSGenericLowering::LowerJSCallRuntime(Node* node) {
-  Runtime::FunctionId function = OpParameter<Runtime::FunctionId>(node);
-  int arity = OperatorProperties::GetValueInputCount(node->op());
-  ReplaceWithRuntimeCall(node, function, arity);
+  const CallRuntimeParameters& p = CallRuntimeParametersOf(node->op());
+  ReplaceWithRuntimeCall(node, p.id(), static_cast<int>(p.arity()));
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8