Introduce IsUndefined(Isolate*) and IsTheHole(Isolate*)

src/x64/code-stubs-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/code-stubs.h"
 #include "src/api-arguments.h"
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
@@ skipping 2646 matching lines @@
 void BinaryOpICWithAllocationSiteStub::Generate(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- rdx    : left
   //  -- rax    : right
   //  -- rsp[0] : return address
   // -----------------------------------
 
   // Load rcx with the allocation site.  We stick an undefined dummy value here
   // and replace it with the real allocation site later when we instantiate this
   // stub in BinaryOpICWithAllocationSiteStub::GetCodeCopyFromTemplate().
-  __ Move(rcx, handle(isolate()->heap()->undefined_value()));
+  __ Move(rcx, isolate()->factory()->undefined_value());
 
   // Make sure that we actually patched the allocation site.
   if (FLAG_debug_code) {
     __ testb(rcx, Immediate(kSmiTagMask));
     __ Assert(not_equal, kExpectedAllocationSite);
     __ Cmp(FieldOperand(rcx, HeapObject::kMapOffset),
            isolate()->factory()->allocation_site_map());
     __ Assert(equal, kExpectedAllocationSite);
   }
 
@@ skipping 1277 matching lines @@
 
 
 static void CreateArrayDispatchOneArgument(MacroAssembler* masm,
                                            AllocationSiteOverrideMode mode) {
   // rbx - allocation site (if mode != DISABLE_ALLOCATION_SITES)
   // rdx - kind (if mode != DISABLE_ALLOCATION_SITES)
   // rax - number of arguments
   // rdi - constructor?
   // rsp[0] - return address
   // rsp[8] - last argument
-  Handle<Object> undefined_sentinel(
-      masm->isolate()->heap()->undefined_value(),
-      masm->isolate());
 
   Label normal_sequence;
   if (mode == DONT_OVERRIDE) {
     STATIC_ASSERT(FAST_SMI_ELEMENTS == 0);
     STATIC_ASSERT(FAST_HOLEY_SMI_ELEMENTS == 1);
     STATIC_ASSERT(FAST_ELEMENTS == 2);
     STATIC_ASSERT(FAST_HOLEY_ELEMENTS == 3);
     STATIC_ASSERT(FAST_DOUBLE_ELEMENTS == 4);
     STATIC_ASSERT(FAST_HOLEY_DOUBLE_ELEMENTS == 5);
 
@@ skipping 1465 matching lines @@
                            kStackUnwindSpace, nullptr, return_value_operand,
                            NULL);
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X64