Eliminate special keyed load string stub in favor of uniform handlers.

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 569 matching lines @@
                       r3);
   __ Ret();
 
   __ bind(&index_name);
   __ IndexFromHash(r3, key);
   // Now jump to the place where smi keys are handled.
   __ jmp(&index_smi);
 }
 
 
-void KeyedLoadIC::GenerateString(MacroAssembler* masm) {
-  // Return address is in lr.
-  Label miss;
-
-  Register receiver = LoadDescriptor::ReceiverRegister();
-  Register index = LoadDescriptor::NameRegister();
-  Register scratch = r3;
-  Register result = r0;
-  DCHECK(!scratch.is(receiver) && !scratch.is(index));
-
-  StringCharAtGenerator char_at_generator(receiver, index, scratch, result,
-                                          &miss,  // When not a string.
-                                          &miss,  // When not a number.
-                                          &miss,  // When index out of range.
-                                          STRING_INDEX_IS_ARRAY_INDEX);
-  char_at_generator.GenerateFast(masm);
-  __ Ret();
-
-  StubRuntimeCallHelper call_helper;
-  char_at_generator.GenerateSlow(masm, call_helper);
-
-  __ bind(&miss);
-  GenerateMiss(masm);
-}
-
-
 void KeyedStoreIC::GenerateMiss(MacroAssembler* masm) {
   // Push receiver, key and value for runtime call.
   __ Push(StoreDescriptor::ReceiverRegister(), StoreDescriptor::NameRegister(),
           StoreDescriptor::ValueRegister());
 
   ExternalReference ref =
       ExternalReference(IC_Utility(kKeyedStoreIC_Miss), masm->isolate());
   __ TailCallExternalReference(ref, 3, 1);
 }
 
@@ skipping 384 matching lines @@
     patcher.EmitCondition(ne);
   } else {
     DCHECK(Assembler::GetCondition(branch_instr) == ne);
     patcher.EmitCondition(eq);
   }
 }
 }
 }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM