Fix mac x64 build.

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 681 matching lines @@
     bind(&correct_result);
   }
 }
 
 
 void MacroAssembler::SmiTryAddConstant(Register dst,
                                        Register src,
                                        Smi* constant,
                                        Label* on_not_smi_result) {
   // Does not assume that src is a smi.
-  ASSERT_EQ(static_cast<intptr_t>(1), kSmiTagMask);
+  ASSERT_EQ(static_cast<int>(1), static_cast<int>(kSmiTagMask));
   ASSERT_EQ(0, kSmiTag);
   ASSERT(!dst.is(kScratchRegister));
   ASSERT(!src.is(kScratchRegister));
 
   JumpIfNotSmi(src, on_not_smi_result);
   Register tmp = (dst.is(src) ? kScratchRegister : dst);
   Move(tmp, constant);
   addq(tmp, src);
   j(overflow, on_not_smi_result);
   if (dst.is(src)) {
@@ skipping 1550 matching lines @@
 CodePatcher::~CodePatcher() {
   // Indicate that code has changed.
   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