[turbofan] Make arguments object materialization inlinable.

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/js-generic-lowering.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/machine-operator.h"
@@ skipping 97 matching lines @@
 REPLACE_COMPARE_IC_CALL_WITH_LANGUAGE_MODE(JSLessThanOrEqual, Token::LTE)
 REPLACE_COMPARE_IC_CALL_WITH_LANGUAGE_MODE(JSGreaterThanOrEqual, Token::GTE)
 #undef REPLACE_COMPARE_IC_CALL_WITH_LANGUAGE_MODE
 
 
 #define REPLACE_RUNTIME_CALL(op, fun)             \
   void JSGenericLowering::Lower##op(Node* node) { \
     ReplaceWithRuntimeCall(node, fun);            \
   }
 REPLACE_RUNTIME_CALL(JSCreate, Runtime::kAbort)
-REPLACE_RUNTIME_CALL(JSCreateArguments, Runtime::kNewArguments)
 REPLACE_RUNTIME_CALL(JSCreateFunctionContext, Runtime::kNewFunctionContext)
 REPLACE_RUNTIME_CALL(JSCreateWithContext, Runtime::kPushWithContext)
 REPLACE_RUNTIME_CALL(JSCreateBlockContext, Runtime::kPushBlockContext)
 REPLACE_RUNTIME_CALL(JSCreateModuleContext, Runtime::kPushModuleContext)
 REPLACE_RUNTIME_CALL(JSCreateScriptContext, Runtime::kNewScriptContext)
 #undef REPLACE_RUNTIME
 
 
 #define REPLACE_UNIMPLEMENTED(op) \
   void JSGenericLowering::Lower##op(Node* node) { UNIMPLEMENTED(); }
@@ skipping 354 matching lines @@
 void JSGenericLowering::LowerJSLoadDynamicContext(Node* node) {
   const DynamicContextAccess& access = DynamicContextAccessOf(node->op());
   Node* projection = graph()->NewNode(common()->Projection(0), node);
   NodeProperties::ReplaceUses(node, projection, node, node, node);
   node->InsertInput(zone(), 1, jsgraph()->Constant(access.name()));
   ReplaceWithRuntimeCall(node, Runtime::kLoadLookupSlot);
   projection->ReplaceInput(0, node);
 }
 
 
+void JSGenericLowering::LowerJSCreateArguments(Node* node) {
+  const CreateArgumentsParameters& p = CreateArgumentsParametersOf(node->op());
+  switch (p.type()) {
+    case CreateArgumentsParameters::kMappedArguments:
+      ReplaceWithRuntimeCall(node, Runtime::kNewSloppyArguments_Generic);
+      break;
+    case CreateArgumentsParameters::kUnmappedArguments:
+      ReplaceWithRuntimeCall(node, Runtime::kNewStrictArguments_Generic);
+      break;
+    case CreateArgumentsParameters::kRestArray:
+      UNIMPLEMENTED();
+      break;
+  }
+}
+
+
 void JSGenericLowering::LowerJSCreateClosure(Node* node) {
   CreateClosureParameters p = CreateClosureParametersOf(node->op());
   node->InsertInput(zone(), 0, jsgraph()->HeapConstant(p.shared_info()));
   ReplaceWithRuntimeCall(node, (p.pretenure() == TENURED)
                                    ? Runtime::kNewClosure_Tenured
                                    : Runtime::kNewClosure);
 }
 
 
 void JSGenericLowering::LowerJSCreateLiteralArray(Node* node) {
@@ skipping 323 matching lines @@
 }
 
 
 MachineOperatorBuilder* JSGenericLowering::machine() const {
   return jsgraph()->machine();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8