X64: Load HeapNumberMap once in BinaryOpStub, and reuse it.

src/x64/macro-assembler-x64.cc

 // Copyright 2009 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 17 matching lines @@
 #include "v8.h"
 
 #if defined(V8_TARGET_ARCH_X64)
 
 #include "bootstrapper.h"
 #include "codegen-inl.h"
 #include "assembler-x64.h"
 #include "macro-assembler-x64.h"
 #include "serialize.h"
 #include "debug.h"
+#include "heap.h"
 
 namespace v8 {
 namespace internal {
 
 MacroAssembler::MacroAssembler(void* buffer, int size)
     : Assembler(buffer, size),
       generating_stub_(false),
       allow_stub_calls_(true),
       code_object_(Heap::undefined_value()) {
 }
@@ skipping 1676 matching lines @@
 }
 
 
 void MacroAssembler::AbortIfNotSmi(Register object) {
   Label ok;
   Condition is_smi = CheckSmi(object);
   Assert(is_smi, "Operand not a smi");
 }
 
 
+void MacroAssembler::AbortIfNotRootValue(Register src,
+                                         Heap::RootListIndex root_value_index,
+                                         const char* message) {
+  ASSERT(!src.is(kScratchRegister));
+  LoadRoot(kScratchRegister, root_value_index);
+  cmpq(src, kScratchRegister);
+  Check(equal, message);
+}
+
+
+
 Condition MacroAssembler::IsObjectStringType(Register heap_object,
                                              Register map,
                                              Register instance_type) {
   movq(map, FieldOperand(heap_object, HeapObject::kMapOffset));
   movzxbl(instance_type, FieldOperand(map, Map::kInstanceTypeOffset));
   ASSERT(kNotStringTag != 0);
   testb(instance_type, Immediate(kIsNotStringMask));
   return zero;
 }
 
@@ skipping 1005 matching lines @@
   CPU::FlushICache(address_, size_);
 
   // Check that the code was patched as expected.
   ASSERT(masm_.pc_ == address_ + size_);
   ASSERT(masm_.reloc_info_writer.pos() == address_ + size_ + Assembler::kGap);
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64