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

src/mips/lithium-codegen-mips.cc

 // Copyright 2012 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 3352 matching lines @@
   // Deoptimize if the receiver is not a JS object.
   __ SmiTst(receiver, scratch);
   DeoptimizeIf(eq, instr->environment(), scratch, Operand(zero_reg));
 
   __ GetObjectType(receiver, scratch, scratch);
   DeoptimizeIf(lt, instr->environment(),
                scratch, Operand(FIRST_SPEC_OBJECT_TYPE));
   __ Branch(&result_in_receiver);
 
   __ bind(&global_object);
+  CallStubCompiler::FetchGlobalProxy(masm(), receiver, function);
 
-  __ lw(result, MemOperand(fp, StandardFrameConstants::kContextOffset));
-  __ lw(result, ContextOperand(result, Context::GLOBAL_OBJECT_INDEX));
-  __ lw(result,
-         FieldMemOperand(result, JSGlobalObject::kGlobalReceiverOffset));
   if (result.is(receiver)) {
     __ bind(&result_in_receiver);
   } else {
     Label result_ok;
     __ Branch(&result_ok);
     __ bind(&result_in_receiver);
     __ mov(result, receiver);
     __ bind(&result_ok);
   }
 }
@@ skipping 522 matching lines @@
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoCallFunction(LCallFunction* instr) {
   ASSERT(ToRegister(instr->context()).is(cp));
   ASSERT(ToRegister(instr->function()).is(a1));
   ASSERT(ToRegister(instr->result()).is(v0));
 
   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()) __ mov(sp, fp);
     __ Jump(stub.GetCode(isolate()), RelocInfo::CODE_TARGET);
   } else {
     CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr);
   }
 }
 
 
 void LCodeGen::DoCallGlobal(LCallGlobal* instr) {
@@ skipping 1877 matching lines @@
   __ Subu(scratch, result, scratch);
   __ lw(result, FieldMemOperand(scratch,
                                 FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal