Replace store array length builtin with codestub.

src/arm/ic-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 1520 matching lines @@
 
   __ Push(r1, r2, r0);
 
   // Perform tail call to the entry.
   ExternalReference ref =
       ExternalReference(IC_Utility(kStoreIC_Miss), masm->isolate());
   __ TailCallExternalReference(ref, 3, 1);
 }
 
 
-void StoreIC::GenerateArrayLength(MacroAssembler* masm) {
-  // ----------- S t a t e -------------
-  //  -- r0    : value
-  //  -- r1    : receiver
-  //  -- r2    : name
-  //  -- lr    : return address
-  // -----------------------------------
-  //
-  // This accepts as a receiver anything JSArray::SetElementsLength accepts
-  // (currently anything except for external arrays which means anything with
-  // elements of FixedArray type).  Value must be a number, but only smis are
-  // accepted as the most common case.
-
-  Label miss;
-
-  Register receiver = r1;
-  Register value = r0;
-  Register scratch = r3;
-
-  // Check that the receiver isn't a smi.
-  __ JumpIfSmi(receiver, &miss);
-
-  // Check that the object is a JS array.
-  __ CompareObjectType(receiver, scratch, scratch, JS_ARRAY_TYPE);
-  __ b(ne, &miss);
-
-  // Check that elements are FixedArray.
-  // We rely on StoreIC_ArrayLength below to deal with all types of
-  // fast elements (including COW).
-  __ ldr(scratch, FieldMemOperand(receiver, JSArray::kElementsOffset));
-  __ CompareObjectType(scratch, scratch, scratch, FIXED_ARRAY_TYPE);
-  __ b(ne, &miss);
-
-  // Check that the array has fast properties, otherwise the length
-  // property might have been redefined.
-  __ ldr(scratch, FieldMemOperand(receiver, JSArray::kPropertiesOffset));
-  __ ldr(scratch, FieldMemOperand(scratch, FixedArray::kMapOffset));
-  __ CompareRoot(scratch, Heap::kHashTableMapRootIndex);
-  __ b(eq, &miss);
-
-  // Check that value is a smi.
-  __ JumpIfNotSmi(value, &miss);
-
-  // Prepare tail call to StoreIC_ArrayLength.
-  __ Push(receiver, value);
-
-  ExternalReference ref =
-      ExternalReference(IC_Utility(kStoreIC_ArrayLength), masm->isolate());
-  __ TailCallExternalReference(ref, 2, 1);
-
-  __ bind(&miss);
-
-  GenerateMiss(masm);
-}
-
-
 void StoreIC::GenerateNormal(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r0    : value
   //  -- r1    : receiver
   //  -- r2    : name
   //  -- lr    : return address
   // -----------------------------------
   Label miss;
 
   GenerateStringDictionaryReceiverCheck(masm, r1, r3, r4, r5, &miss);
@@ skipping 125 matching lines @@
   } else {
     ASSERT(Assembler::GetCondition(branch_instr) == ne);
     patcher.EmitCondition(eq);
   }
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM