Make KeyedLoads from a sloppy arguments array use a handler.

src/ic/arm/ic-arm.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_ARM
 
 #include "src/codegen.h"
 #include "src/ic/ic.h"
@@ skipping 351 matching lines @@
   __ ldr(scratch, FieldMemOperand(backing_store, FixedArray::kLengthOffset));
   __ cmp(key, Operand(scratch));
   __ b(cs, slow_case);
   __ mov(scratch, Operand(kPointerSize >> 1));
   __ mul(scratch, key, scratch);
   __ add(scratch, scratch, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
   return MemOperand(backing_store, scratch);
 }
 
 
-void KeyedLoadIC::GenerateSloppyArguments(MacroAssembler* masm) {
-  // The return address is in lr.
-  Register receiver = LoadDescriptor::ReceiverRegister();
-  Register key = LoadDescriptor::NameRegister();
-  DCHECK(receiver.is(r1));
-  DCHECK(key.is(r2));
-
-  Label slow, notin;
-  MemOperand mapped_location = GenerateMappedArgumentsLookup(
-      masm, receiver, key, r0, r3, r4, &notin, &slow);
-  __ ldr(r0, mapped_location);
-  __ Ret();
-  __ bind(&notin);
-  // The unmapped lookup expects that the parameter map is in r0.
-  MemOperand unmapped_location =
-      GenerateUnmappedArgumentsLookup(masm, key, r0, r3, &slow);
-  __ ldr(r0, unmapped_location);
-  __ LoadRoot(r3, Heap::kTheHoleValueRootIndex);
-  __ cmp(r0, r3);
-  __ b(eq, &slow);
-  __ Ret();
-  __ bind(&slow);
-  GenerateMiss(masm);
-}
-
-
 void KeyedStoreIC::GenerateSloppyArguments(MacroAssembler* masm) {
   Register receiver = StoreDescriptor::ReceiverRegister();
   Register key = StoreDescriptor::NameRegister();
   Register value = StoreDescriptor::ValueRegister();
   DCHECK(receiver.is(r1));
   DCHECK(key.is(r2));
   DCHECK(value.is(r0));
 
   Label slow, notin;
   MemOperand mapped_location = GenerateMappedArgumentsLookup(
@@ skipping 628 matching lines @@
     patcher.EmitCondition(ne);
   } else {
     DCHECK(Assembler::GetCondition(branch_instr) == ne);
     patcher.EmitCondition(eq);
   }
 }
 }
 }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM