[ic] Don't pass receiver and name to LoadGlobalIC.

src/full-codegen/ia32/full-codegen-ia32.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.
 
 #if V8_TARGET_ARCH_IA32
 
 #include "src/ast/scopes.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 1198 matching lines @@
       __ push(Immediate(var->name()));
       __ CallRuntime(Runtime::kThrowReferenceError);
     }
     __ jmp(done);
   }
 }
 
 
 void FullCodeGenerator::EmitGlobalVariableLoad(VariableProxy* proxy,
                                                TypeofMode typeof_mode) {
+#ifdef DEBUG
   Variable* var = proxy->var();
   DCHECK(var->IsUnallocatedOrGlobalSlot() ||
          (var->IsLookupSlot() && var->mode() == DYNAMIC_GLOBAL));
-  __ mov(LoadDescriptor::ReceiverRegister(), NativeContextOperand());
-  __ mov(LoadDescriptor::ReceiverRegister(),
-         ContextOperand(LoadDescriptor::ReceiverRegister(),
-                        Context::EXTENSION_INDEX));
-  __ mov(LoadDescriptor::NameRegister(), var->name());
-  __ mov(LoadDescriptor::SlotRegister(),
+#endif
+  __ mov(LoadGlobalDescriptor::SlotRegister(),
          Immediate(SmiFromSlot(proxy->VariableFeedbackSlot())));
   CallLoadGlobalIC(typeof_mode);
 }
 
 
 void FullCodeGenerator::EmitVariableLoad(VariableProxy* proxy,
                                          TypeofMode typeof_mode) {
   SetExpressionPosition(proxy);
   PrepareForBailoutForId(proxy->BeforeId(), BailoutState::NO_REGISTERS);
   Variable* var = proxy->var();
@@ skipping 2456 matching lines @@
       isolate->builtins()->OnStackReplacement()->entry(),
       Assembler::target_address_at(call_target_address, unoptimized_code));
   return ON_STACK_REPLACEMENT;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_IA32