Reland v8:18458 "Load the global proxy from the context of the target function."

src/x64/lithium-codegen-x64.cc

 // Copyright 2013 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 3232 matching lines @@
   Condition is_smi = __ CheckSmi(receiver);
   DeoptimizeIf(is_smi, instr->environment());
   __ CmpObjectType(receiver, FIRST_SPEC_OBJECT_TYPE, kScratchRegister);
   DeoptimizeIf(below, instr->environment());
   __ jmp(&receiver_ok, Label::kNear);
 
   __ bind(&global_object);
   // TODO(kmillikin): We have a hydrogen value for the global object.  See
   // if it's better to use it than to explicitly fetch it from the context
   // here.
-  __ movq(receiver, Operand(rbp, StandardFrameConstants::kContextOffset));
-  __ movq(receiver, ContextOperand(receiver, Context::GLOBAL_OBJECT_INDEX));
-  __ movq(receiver,
-          FieldOperand(receiver, JSGlobalObject::kGlobalReceiverOffset));
+  CallStubCompiler::FetchGlobalProxy(masm(), receiver, function);
   __ bind(&receiver_ok);
 }
 
 
 void LCodeGen::DoApplyArguments(LApplyArguments* instr) {
   Register receiver = ToRegister(instr->receiver());
   Register function = ToRegister(instr->function());
   Register length = ToRegister(instr->length());
   Register elements = ToRegister(instr->elements());
   ASSERT(receiver.is(rax));  // Used for parameter count.
@@ skipping 544 matching lines @@
   CallCode(ic, mode, instr);
 }
 
 
 void LCodeGen::DoCallFunction(LCallFunction* instr) {
   ASSERT(ToRegister(instr->context()).is(rsi));
   ASSERT(ToRegister(instr->function()).is(rdi));
   ASSERT(ToRegister(instr->result()).is(rax));
 
   int arity = instr->arity();
-  CallFunctionStub stub(arity, NO_CALL_FUNCTION_FLAGS);
+  CallFunctionFlags flags =
+      instr->hydrogen()->IsContextualCall() ?
+          RECEIVER_IS_IMPLICIT : NO_CALL_FUNCTION_FLAGS;
+  CallFunctionStub stub(arity, flags);
   if (instr->hydrogen()->IsTailCall()) {
     if (NeedsEagerFrame()) __ leave();
     __ jmp(stub.GetCode(isolate()), RelocInfo::CODE_TARGET);
   } else {
     CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr);
   }
 }
 
 
 void LCodeGen::DoCallGlobal(LCallGlobal* instr) {
@@ skipping 1802 matching lines @@
                                FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64