Limit the generation of regexp code with large inlined constants.

src/x64/regexp-macro-assembler-x64.cc

 // Copyright 2011 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 685 matching lines @@
 }
 
 
 void RegExpMacroAssemblerX64::Fail() {
   ASSERT(FAILURE == 0);  // Return value for failure is zero.
   __ Set(rax, 0);
   __ jmp(&exit_label_);
 }
 
 
-Handle<Object> RegExpMacroAssemblerX64::GetCode(Handle<String> source) {
+Handle<HeapObject> RegExpMacroAssemblerX64::GetCode(Handle<String> source) {
   // Finalize code - write the entry point code now we know how many
   // registers we need.
   // Entry code:
   __ bind(&entry_label_);
   // Start new stack frame.
   __ push(rbp);
   __ movq(rbp, rsp);
   // Save parameters and callee-save registers. Order here should correspond
   //  to order of kBackup_ebx etc.
 #ifdef _WIN64
@@ skipping 248 matching lines @@
 
   FixupCodeRelativePositions();
 
   CodeDesc code_desc;
   masm_.GetCode(&code_desc);
   Isolate* isolate = ISOLATE;
   Handle<Code> code = isolate->factory()->NewCode(
       code_desc, Code::ComputeFlags(Code::REGEXP),
       masm_.CodeObject());
   PROFILE(isolate, RegExpCodeCreateEvent(*code, *source));
-  return Handle<Object>::cast(code);
+  return Handle<HeapObject>::cast(code);
 }
 
 
 void RegExpMacroAssemblerX64::GoTo(Label* to) {
   BranchOrBacktrack(no_condition, to);
 }
 
 
 void RegExpMacroAssemblerX64::IfRegisterGE(int reg,
                                            int comparand,
@@ skipping 403 matching lines @@
   }
 }
 
 #undef __
 
 #endif  // V8_INTERPRETED_REGEXP
 
 }}  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64