Revert of [runtime] Replace global object link with native context link in all contexts.

src/crankshaft/mips64/lithium-codegen-mips64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/crankshaft/mips64/lithium-codegen-mips64.h"
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/crankshaft/hydrogen-osr.h"
 #include "src/crankshaft/mips64/lithium-gap-resolver-mips64.h"
@@ skipping 174 matching lines @@
     int num_parameters = scope()->num_parameters();
     int first_parameter = scope()->has_this_declaration() ? -1 : 0;
     for (int i = first_parameter; i < num_parameters; i++) {
       Variable* var = (i == -1) ? scope()->receiver() : scope()->parameter(i);
       if (var->IsContextSlot()) {
         int parameter_offset = StandardFrameConstants::kCallerSPOffset +
             (num_parameters - 1 - i) * kPointerSize;
         // Load parameter from stack.
         __ ld(a0, MemOperand(fp, parameter_offset));
         // Store it in the context.
-        MemOperand target = ContextMemOperand(cp, var->index());
+        MemOperand target = ContextOperand(cp, var->index());
         __ sd(a0, target);
         // Update the write barrier. This clobbers a3 and a0.
         if (need_write_barrier) {
           __ RecordWriteContextSlot(
               cp, target.offset(), a0, a3, GetRAState(), kSaveFPRegs);
         } else if (FLAG_debug_code) {
           Label done;
           __ JumpIfInNewSpace(cp, a0, &done);
           __ Abort(kExpectedNewSpaceObject);
           __ bind(&done);
@@ skipping 2636 matching lines @@
       CodeFactory::LoadICInOptimizedCode(isolate(), instr->typeof_mode(),
                                          SLOPPY, PREMONOMORPHIC).code();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoLoadContextSlot(LLoadContextSlot* instr) {
   Register context = ToRegister(instr->context());
   Register result = ToRegister(instr->result());
 
-  __ ld(result, ContextMemOperand(context, instr->slot_index()));
+  __ ld(result, ContextOperand(context, instr->slot_index()));
   if (instr->hydrogen()->RequiresHoleCheck()) {
     __ LoadRoot(at, Heap::kTheHoleValueRootIndex);
 
     if (instr->hydrogen()->DeoptimizesOnHole()) {
       DeoptimizeIf(eq, instr, Deoptimizer::kHole, result, Operand(at));
     } else {
       Label is_not_hole;
       __ Branch(&is_not_hole, ne, result, Operand(at));
       __ LoadRoot(result, Heap::kUndefinedValueRootIndex);
       __ bind(&is_not_hole);
     }
   }
 }
 
 
 void LCodeGen::DoStoreContextSlot(LStoreContextSlot* instr) {
   Register context = ToRegister(instr->context());
   Register value = ToRegister(instr->value());
   Register scratch = scratch0();
-  MemOperand target = ContextMemOperand(context, instr->slot_index());
+  MemOperand target = ContextOperand(context, instr->slot_index());
 
   Label skip_assignment;
 
   if (instr->hydrogen()->RequiresHoleCheck()) {
     __ ld(scratch, target);
     __ LoadRoot(at, Heap::kTheHoleValueRootIndex);
 
     if (instr->hydrogen()->DeoptimizesOnHole()) {
       DeoptimizeIf(eq, instr, Deoptimizer::kHole, scratch, Operand(at));
     } else {
@@ skipping 520 matching lines @@
   __ SmiTst(receiver, scratch);
   DeoptimizeIf(eq, instr, Deoptimizer::kSmi, scratch, Operand(zero_reg));
 
   __ GetObjectType(receiver, scratch, scratch);
   DeoptimizeIf(lt, instr, Deoptimizer::kNotAJavaScriptObject, scratch,
                Operand(FIRST_SPEC_OBJECT_TYPE));
   __ Branch(&result_in_receiver);
 
   __ bind(&global_object);
   __ ld(result, FieldMemOperand(function, JSFunction::kContextOffset));
-  __ ld(result, ContextMemOperand(result, Context::NATIVE_CONTEXT_INDEX));
-  __ ld(result, ContextMemOperand(result, Context::GLOBAL_PROXY_INDEX));
+  __ ld(result,
+        ContextOperand(result, Context::GLOBAL_OBJECT_INDEX));
+  __ ld(result, FieldMemOperand(result, JSGlobalObject::kGlobalProxyOffset));
 
   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 2525 matching lines @@
   __ Push(at, ToRegister(instr->function()));
   CallRuntime(Runtime::kPushBlockContext, 2, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8