Make KeyedLoads from a sloppy arguments array use a handler.

src/ic/mips/ic-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_MIPS
 
 #include "src/codegen.h"
@@ skipping 356 matching lines @@
   __ lw(scratch, FieldMemOperand(backing_store, FixedArray::kLengthOffset));
   __ Branch(slow_case, Ugreater_equal, key, Operand(scratch));
   __ li(scratch, Operand(kPointerSize >> 1));
   __ Mul(scratch, key, scratch);
   __ Addu(scratch, scratch, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
   __ Addu(scratch, backing_store, scratch);
   return MemOperand(scratch);
 }
 
 
-void KeyedLoadIC::GenerateSloppyArguments(MacroAssembler* masm) {
-  // The return address is in ra.
-  Register receiver = LoadDescriptor::ReceiverRegister();
-  Register key = LoadDescriptor::NameRegister();
-  DCHECK(receiver.is(a1));
-  DCHECK(key.is(a2));
-
-  Label slow, notin;
-  MemOperand mapped_location = GenerateMappedArgumentsLookup(
-      masm, receiver, key, a0, a3, t0, &notin, &slow);
-  __ Ret(USE_DELAY_SLOT);
-  __ lw(v0, mapped_location);
-  __ bind(&notin);
-  // The unmapped lookup expects that the parameter map is in a0.
-  MemOperand unmapped_location =
-      GenerateUnmappedArgumentsLookup(masm, key, a0, a3, &slow);
-  __ lw(a0, unmapped_location);
-  __ LoadRoot(a3, Heap::kTheHoleValueRootIndex);
-  __ Branch(&slow, eq, a0, Operand(a3));
-  __ Ret(USE_DELAY_SLOT);
-  __ mov(v0, a0);
-  __ bind(&slow);
-  GenerateMiss(masm);
-}
-
-
 void KeyedStoreIC::GenerateSloppyArguments(MacroAssembler* masm) {
   Register receiver = StoreDescriptor::ReceiverRegister();
   Register key = StoreDescriptor::NameRegister();
   Register value = StoreDescriptor::ValueRegister();
   DCHECK(value.is(a0));
 
   Label slow, notin;
   // Store address is returned in register (of MemOperand) mapped_location.
   MemOperand mapped_location = GenerateMappedArgumentsLookup(
       masm, receiver, key, a3, t0, t1, &notin, &slow);
@@ skipping 628 matching lines @@
     patcher.ChangeBranchCondition(ne);
   } else {
     DCHECK(Assembler::IsBne(branch_instr));
     patcher.ChangeBranchCondition(eq);
   }
 }
 }
 }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS