Convert FastNewClosureStub into hydrogen.

src/arm/lithium-codegen-arm.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 4128 matching lines @@
     CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr);
   }
 }
 
 
 void LCodeGen::DoCallRuntime(LCallRuntime* instr) {
   CallRuntime(instr->function(), instr->arity(), instr);
 }
 
 
+void LCodeGen::DoStoreCodeEntry(LStoreCodeEntry* instr) {
+  Register function = ToRegister(instr->function());
+  Register code_object = ToRegister(instr->code_object());
+  __ add(code_object, code_object, Operand(Code::kHeaderSize - kHeapObjectTag));
+  __ str(code_object,
+         FieldMemOperand(function, JSFunction::kCodeEntryOffset));
+}
+
+
 void LCodeGen::DoInnerAllocatedObject(LInnerAllocatedObject* instr) {
   Register result = ToRegister(instr->result());
   Register base = ToRegister(instr->base_object());
   __ add(result, base, Operand(instr->offset()));
 }
 
 
 void LCodeGen::DoStoreNamedField(LStoreNamedField* instr) {
   Representation representation = instr->representation();
 
@@ skipping 1251 matching lines @@
 }
 
 
 void LCodeGen::DoFunctionLiteral(LFunctionLiteral* instr) {
   // Use the fast case closure allocation code that allocates in new
   // space for nested functions that don't need literals cloning.
   bool pretenure = instr->hydrogen()->pretenure();
   if (!pretenure && instr->hydrogen()->has_no_literals()) {
     FastNewClosureStub stub(instr->hydrogen()->language_mode(),
                             instr->hydrogen()->is_generator());
-    __ mov(r1, Operand(instr->hydrogen()->shared_info()));
-    __ push(r1);
+    __ mov(r2, Operand(instr->hydrogen()->shared_info()));
     CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr);
   } else {
     __ mov(r2, Operand(instr->hydrogen()->shared_info()));
     __ mov(r1, Operand(pretenure ? factory()->true_value()
                                  : factory()->false_value()));
     __ Push(cp, r2, r1);
     CallRuntime(Runtime::kNewClosure, 3, instr);
   }
 }
 
@@ skipping 341 matching lines @@
   __ sub(scratch, result, Operand::PointerOffsetFromSmiKey(index));
   __ ldr(result, FieldMemOperand(scratch,
                                  FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal