Kill obsolete HLoadExternalArrayPointer instruction.

src/arm/lithium-codegen-arm.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 3129 matching lines @@
   __ bind(&done);
 }
 
 
 void LCodeGen::DoLoadRoot(LLoadRoot* instr) {
   Register result = ToRegister(instr->result());
   __ LoadRoot(result, instr->index());
 }
 
 
-void LCodeGen::DoLoadExternalArrayPointer(
-    LLoadExternalArrayPointer* instr) {
-  Register to_reg = ToRegister(instr->result());
-  Register from_reg  = ToRegister(instr->object());
-  __ ldr(to_reg, FieldMemOperand(from_reg,
-                                 ExternalArray::kExternalPointerOffset));
-}
-
-
 void LCodeGen::DoAccessArgumentsAt(LAccessArgumentsAt* instr) {
   Register arguments = ToRegister(instr->arguments());
   Register result = ToRegister(instr->result());
   // There are two words between the frame pointer and the last argument.
   // Subtracting from length accounts for one of them add one more.
   if (instr->length()->IsConstantOperand()) {
     int const_length = ToInteger32(LConstantOperand::cast(instr->length()));
     if (instr->index()->IsConstantOperand()) {
       int const_index = ToInteger32(LConstantOperand::cast(instr->index()));
       int index = (const_length - const_index) + 1;
@@ skipping 2649 matching lines @@
   __ sub(scratch, result, Operand::PointerOffsetFromSmiKey(index));
   __ ldr(result, FieldMemOperand(scratch,
                                  FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal