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

src/arm/lithium-codegen-arm.cc

Index: src/arm/lithium-codegen-arm.cc
diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index dfacf4c2a7d5c6474dd8528954f84dc7afb477e0..316ddf12915f432a05ef050186b7a68de7960a68 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -3227,40 +3227,6 @@ void LCodeGen::DoLoadFunctionPrototype(LLoadFunctionPrototype* instr) {
 }
 
 
-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());