Optimize calls to object literal properties that are initialized with a funct...

src/x64/lithium-codegen-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 3469 matching lines @@
 
   // Pick the right runtime function to call.
   if (instr->hydrogen()->depth() > 1) {
     CallRuntime(Runtime::kCreateObjectLiteral, 4, instr);
   } else {
     CallRuntime(Runtime::kCreateObjectLiteralShallow, 4, instr);
   }
 }
 
 
+void LCodeGen::DoToFastProperties(LToFastProperties* instr) {
+  ASSERT(ToRegister(instr->InputAt(0)).is(rax));
+  __ push(rax);
+  CallRuntime(Runtime::kToFastProperties, 1, instr);
+}
+
+
 void LCodeGen::DoRegExpLiteral(LRegExpLiteral* instr) {
   NearLabel materialized;
   // Registers will be used as follows:
   // rdi = JS function.
   // rcx = literals array.
   // rbx = regexp literal.
   // rax = regexp literal clone.
   __ movq(rdi, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
   __ movq(rcx, FieldOperand(rdi, JSFunction::kLiteralsOffset));
   int literal_offset = FixedArray::kHeaderSize +
@@ skipping 312 matching lines @@
   RegisterEnvironmentForDeoptimization(environment);
   ASSERT(osr_pc_offset_ == -1);
   osr_pc_offset_ = masm()->pc_offset();
 }
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64