[runtime] Sanitize %NewClosure runtime entries.

src/x64/lithium-codegen-x64.cc

 // Copyright 2013 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.
 
 #if V8_TARGET_ARCH_X64
 
 #include "src/base/bits.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/cpu-profiler.h"
@@ skipping 5490 matching lines @@
     __ movp(FieldOperand(rax, i), rdx);
     __ movp(FieldOperand(rax, i + kPointerSize), rcx);
   }
   if ((size % (2 * kPointerSize)) != 0) {
     __ movp(rdx, FieldOperand(rbx, size - kPointerSize));
     __ movp(FieldOperand(rax, size - kPointerSize), rdx);
   }
 }
 
 
-void LCodeGen::DoFunctionLiteral(LFunctionLiteral* instr) {
-  DCHECK(ToRegister(instr->context()).is(rsi));
-  // 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(isolate(), instr->hydrogen()->language_mode(),
-                            instr->hydrogen()->kind());
-    __ Move(rbx, instr->hydrogen()->shared_info());
-    CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr);
-  } else {
-    __ Push(rsi);
-    __ Push(instr->hydrogen()->shared_info());
-    __ PushRoot(pretenure ? Heap::kTrueValueRootIndex :
-                            Heap::kFalseValueRootIndex);
-    CallRuntime(Runtime::kNewClosure, 3, instr);
-  }
-}
-
-
 void LCodeGen::DoTypeof(LTypeof* instr) {
   DCHECK(ToRegister(instr->context()).is(rsi));
   DCHECK(ToRegister(instr->value()).is(rbx));
   Label end, do_call;
   Register value_register = ToRegister(instr->value());
   __ JumpIfNotSmi(value_register, &do_call);
   __ Move(rax, isolate()->factory()->number_string());
   __ jmp(&end);
   __ bind(&do_call);
   TypeofStub stub(isolate());
@@ skipping 400 matching lines @@
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X64