Simplify pending message script handling.

src/arm64/full-codegen-arm64.cc

 // Copyright 2013 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_ARM64
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
@@ skipping 5330 matching lines @@
   __ Ldr(x10, MemOperand(x10));
 
   ExternalReference has_pending_message =
       ExternalReference::address_of_has_pending_message(isolate());
   STATIC_ASSERT(sizeof(bool) == 1);   // NOLINT(runtime/sizeof)
   __ Mov(x11, has_pending_message);
   __ Ldrb(x11, MemOperand(x11));
   __ SmiTag(x11);
 
   __ Push(x10, x11);
-
-  ExternalReference pending_message_script =
-      ExternalReference::address_of_pending_message_script(isolate());
-  __ Mov(x10, pending_message_script);
-  __ Ldr(x10, MemOperand(x10));
-  __ Push(x10);
 }
 
 
 void FullCodeGenerator::ExitFinallyBlock() {
   ASM_LOCATION("FullCodeGenerator::ExitFinallyBlock");
   DCHECK(!result_register().is(x10));
 
   // Restore pending message from stack.
-  __ Pop(x10, x11, x12);
-  ExternalReference pending_message_script =
-      ExternalReference::address_of_pending_message_script(isolate());
-  __ Mov(x13, pending_message_script);
-  __ Str(x10, MemOperand(x13));
-
-  __ SmiUntag(x11);
+  __ Pop(x10, x11);
+  __ SmiUntag(x10);
   ExternalReference has_pending_message =
       ExternalReference::address_of_has_pending_message(isolate());
   __ Mov(x13, has_pending_message);
   STATIC_ASSERT(sizeof(bool) == 1);   // NOLINT(runtime/sizeof)
-  __ Strb(x11, MemOperand(x13));
+  __ Strb(x10, MemOperand(x13));
 
   ExternalReference pending_message_obj =
       ExternalReference::address_of_pending_message_obj(isolate());
   __ Mov(x13, pending_message_obj);
-  __ Str(x12, MemOperand(x13));
+  __ Str(x11, MemOperand(x13));
 
   // Restore result register and cooked return address from the stack.
   __ Pop(x10, result_register());
 
   // Uncook the return address (see EnterFinallyBlock).
   __ SmiUntag(x10);
   __ Add(x11, x10, Operand(masm_->CodeObject()));
   __ Br(x11);
 }
 
@@ skipping 123 matching lines @@
   return previous_;
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM64