Remove HLoadElements instruction and replace with use of more general HLoadNamedField.

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 3209 matching lines @@
   // Non-instance prototype: Fetch prototype from constructor field
   // in initial map.
   __ bind(&non_instance);
   __ ldr(result, FieldMemOperand(result, Map::kConstructorOffset));
 
   // All done.
   __ bind(&done);
 }
 
 
-void LCodeGen::DoLoadElements(LLoadElements* instr) {
-  Register result = ToRegister(instr->result());
-  Register input = ToRegister(instr->object());
-  Register scratch = scratch0();
-
-  __ ldr(result, FieldMemOperand(input, JSObject::kElementsOffset));
-  if (FLAG_debug_code) {
-    Label done, fail;
-    __ ldr(scratch, FieldMemOperand(result, HeapObject::kMapOffset));
-    __ LoadRoot(ip, Heap::kFixedArrayMapRootIndex);
-    __ cmp(scratch, ip);
-    __ b(eq, &done);
-    __ LoadRoot(ip, Heap::kFixedCOWArrayMapRootIndex);
-    __ cmp(scratch, ip);
-    __ b(eq, &done);
-    // |scratch| still contains |input|'s map.
-    __ ldr(scratch, FieldMemOperand(scratch, Map::kBitField2Offset));
-    __ ubfx(scratch, scratch, Map::kElementsKindShift,
-            Map::kElementsKindBitCount);
-    __ cmp(scratch, Operand(GetInitialFastElementsKind()));
-    __ b(lt, &fail);
-    __ cmp(scratch, Operand(TERMINAL_FAST_ELEMENTS_KIND));
-    __ b(le, &done);
-    __ cmp(scratch, Operand(FIRST_EXTERNAL_ARRAY_ELEMENTS_KIND));
-    __ b(lt, &fail);
-    __ cmp(scratch, Operand(LAST_EXTERNAL_ARRAY_ELEMENTS_KIND));
-    __ b(le, &done);
-    __ bind(&fail);
-    __ Abort("Check for fast or external elements failed.");
-    __ bind(&done);
-  }
-}
-
-
 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) {
@@ skipping 2767 matching lines @@
   __ sub(scratch, result, Operand(index, LSL, kPointerSizeLog2 - kSmiTagSize));
   __ ldr(result, FieldMemOperand(scratch,
                                  FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal