MIPS: Replace store array length builtin with codestub.

src/mips/ic-mips.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 1517 matching lines @@
   // -----------------------------------
 
   __ Push(a1, a2, a0);
   // 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 -------------
-  //  -- a0    : value
-  //  -- a1    : receiver
-  //  -- a2    : name
-  //  -- ra    : 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 = a1;
-  Register value = a0;
-  Register scratch = a3;
-
-  // Check that the receiver isn't a smi.
-  __ JumpIfSmi(receiver, &miss);
-
-  // Check that the object is a JS array.
-  __ GetObjectType(receiver, scratch, scratch);
-  __ Branch(&miss, ne, scratch, Operand(JS_ARRAY_TYPE));
-
-  // Check that elements are FixedArray.
-  // We rely on StoreIC_ArrayLength below to deal with all types of
-  // fast elements (including COW).
-  __ lw(scratch, FieldMemOperand(receiver, JSArray::kElementsOffset));
-  __ GetObjectType(scratch, scratch, scratch);
-  __ Branch(&miss, ne, scratch, Operand(FIXED_ARRAY_TYPE));
-
-  // Check that the array has fast properties, otherwise the length
-  // property might have been redefined.
-  __ lw(scratch, FieldMemOperand(receiver, JSArray::kPropertiesOffset));
-  __ lw(scratch, FieldMemOperand(scratch, FixedArray::kMapOffset));
-  __ LoadRoot(at, Heap::kHashTableMapRootIndex);
-  __ Branch(&miss, eq, scratch, Operand(at));
-
-  // 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 -------------
   //  -- a0    : value
   //  -- a1    : receiver
   //  -- a2    : name
   //  -- ra    : return address
   // -----------------------------------
   Label miss;
 
   GenerateStringDictionaryReceiverCheck(masm, a1, a3, t0, t1, &miss);
@@ skipping 124 matching lines @@
   } else {
     ASSERT(Assembler::IsBne(branch_instr));
     patcher.ChangeBranchCondition(eq);
   }
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS