MIPS: Simplify pending message script handling.

src/mips64/full-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/v8.h"
 
 #if V8_TARGET_ARCH_MIPS64
 
 // Note on Mips implementation:
 //
@@ skipping 5320 matching lines @@
   __ li(at, Operand(pending_message_obj));
   __ ld(a1, MemOperand(at));
   __ push(a1);
 
   ExternalReference has_pending_message =
       ExternalReference::address_of_has_pending_message(isolate());
   __ li(at, Operand(has_pending_message));
   __ ld(a1, MemOperand(at));
   __ SmiTag(a1);
   __ push(a1);
-
-  ExternalReference pending_message_script =
-      ExternalReference::address_of_pending_message_script(isolate());
-  __ li(at, Operand(pending_message_script));
-  __ ld(a1, MemOperand(at));
-  __ push(a1);
 }
 
 
 void FullCodeGenerator::ExitFinallyBlock() {
   DCHECK(!result_register().is(a1));
   // Restore pending message from stack.
   __ pop(a1);
-  ExternalReference pending_message_script =
-      ExternalReference::address_of_pending_message_script(isolate());
-  __ li(at, Operand(pending_message_script));
-  __ sd(a1, MemOperand(at));
-
-  __ pop(a1);
   __ SmiUntag(a1);
   ExternalReference has_pending_message =
       ExternalReference::address_of_has_pending_message(isolate());
   __ li(at, Operand(has_pending_message));
   __ sd(a1, MemOperand(at));
 
   __ pop(a1);
   ExternalReference pending_message_obj =
       ExternalReference::address_of_pending_message_obj(isolate());
   __ li(at, Operand(pending_message_obj));
@@ skipping 118 matching lines @@
       Assembler::target_address_at(pc_immediate_load_address)) ==
          reinterpret_cast<uint64_t>(
              isolate->builtins()->OsrAfterStackCheck()->entry()));
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS64