PPC: Simplify pending message script handling.

src/ppc/full-codegen-ppc.cc

 // Copyright 2014 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/v8.h"
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
@@ skipping 5319 matching lines @@
   __ mov(ip, Operand(pending_message_obj));
   __ LoadP(r4, MemOperand(ip));
   __ push(r4);
 
   ExternalReference has_pending_message =
       ExternalReference::address_of_has_pending_message(isolate());
   __ mov(ip, Operand(has_pending_message));
   __ lbz(r4, MemOperand(ip));
   __ SmiTag(r4);
   __ push(r4);
-
-  ExternalReference pending_message_script =
-      ExternalReference::address_of_pending_message_script(isolate());
-  __ mov(ip, Operand(pending_message_script));
-  __ LoadP(r4, MemOperand(ip));
-  __ push(r4);
 }
 
 
 void FullCodeGenerator::ExitFinallyBlock() {
   DCHECK(!result_register().is(r4));
   // Restore pending message from stack.
   __ pop(r4);
-  ExternalReference pending_message_script =
-      ExternalReference::address_of_pending_message_script(isolate());
-  __ mov(ip, Operand(pending_message_script));
-  __ StoreP(r4, MemOperand(ip));
-
-  __ pop(r4);
   __ SmiUntag(r4);
   ExternalReference has_pending_message =
       ExternalReference::address_of_has_pending_message(isolate());
   __ mov(ip, Operand(has_pending_message));
   __ stb(r4, MemOperand(ip));
 
   __ pop(r4);
   ExternalReference pending_message_obj =
       ExternalReference::address_of_pending_message_obj(isolate());
   __ mov(ip, Operand(pending_message_obj));
@@ skipping 105 matching lines @@
     return ON_STACK_REPLACEMENT;
   }
 
   DCHECK(interrupt_address ==
          isolate->builtins()->OsrAfterStackCheck()->entry());
   return OSR_AFTER_STACK_CHECK;
 }
 }
 }  // namespace v8::internal
 #endif  // V8_TARGET_ARCH_PPC