First stab at try-catch and try-finally in TurboFan.

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/machine-operator.h"
 #include "src/compiler/node-aux-data-inl.h"
@@ skipping 86 matching lines @@
 #undef REPLACE_COMPARE_IC_CALL
 
 
 #define REPLACE_RUNTIME_CALL(op, fun)             \
   void JSGenericLowering::Lower##op(Node* node) { \
     ReplaceWithRuntimeCall(node, fun);            \
   }
 REPLACE_RUNTIME_CALL(JSTypeOf, Runtime::kTypeof)
 REPLACE_RUNTIME_CALL(JSCreate, Runtime::kAbort)
 REPLACE_RUNTIME_CALL(JSCreateFunctionContext, Runtime::kNewFunctionContext)
-REPLACE_RUNTIME_CALL(JSCreateCatchContext, Runtime::kPushCatchContext)
 REPLACE_RUNTIME_CALL(JSCreateWithContext, Runtime::kPushWithContext)
 REPLACE_RUNTIME_CALL(JSCreateBlockContext, Runtime::kPushBlockContext)
 REPLACE_RUNTIME_CALL(JSCreateModuleContext, Runtime::kPushModuleContext)
 REPLACE_RUNTIME_CALL(JSCreateScriptContext, Runtime::kAbort)
 #undef REPLACE_RUNTIME
 
 
 #define REPLACE_UNIMPLEMENTED(op) \
   void JSGenericLowering::Lower##op(Node* node) { UNIMPLEMENTED(); }
 REPLACE_UNIMPLEMENTED(JSYield)
@@ skipping 239 matching lines @@
                             graph()->start()));
   }
   node->ReplaceInput(2, NodeProperties::GetValueInput(node, 1));
   node->ReplaceInput(1, jsgraph()->Int32Constant(Context::SlotOffset(
                             static_cast<int>(access.index()))));
   PatchOperator(node, machine()->Store(StoreRepresentation(kMachAnyTagged,
                                                            kFullWriteBarrier)));
 }
 
 
+void JSGenericLowering::LowerJSCreateCatchContext(Node* node) {
+  Unique<String> name = OpParameter<Unique<String>>(node);
+  PatchInsertInput(node, 0, jsgraph()->HeapConstant(name));
+  ReplaceWithRuntimeCall(node, Runtime::kPushCatchContext);
+}
+
+
 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 = jsgraph()->HeapConstant(stub.GetCode());
   Node* construct = NodeProperties::GetValueInput(node, 0);
   PatchInsertInput(node, 0, stub_code);
   PatchInsertInput(node, 1, jsgraph()->Int32Constant(arity - 1));
@@ skipping 58 matching lines @@
 
 
 void JSGenericLowering::LowerJSCallRuntime(Node* node) {
   const CallRuntimeParameters& p = CallRuntimeParametersOf(node->op());
   ReplaceWithRuntimeCall(node, p.id(), static_cast<int>(p.arity()));
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8