Make KeyedLoads from a sloppy arguments array use a handler.

src/ic/x64/ic-x64.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_X64
 
 #include "src/codegen.h"
 #include "src/ic/ic.h"
@@ skipping 747 matching lines @@
   __ CheckMap(backing_store, fixed_array_map, slow_case, DONT_DO_SMI_CHECK);
   __ movp(scratch, FieldOperand(backing_store, FixedArray::kLengthOffset));
   __ cmpp(key, scratch);
   __ j(greater_equal, slow_case);
   __ SmiToInteger64(scratch, key);
   return FieldOperand(backing_store, scratch, times_pointer_size,
                       FixedArray::kHeaderSize);
 }
 
 
-void KeyedLoadIC::GenerateSloppyArguments(MacroAssembler* masm) {
-  // The return address is on the stack.
-  Register receiver = LoadDescriptor::ReceiverRegister();
-  Register key = LoadDescriptor::NameRegister();
-  DCHECK(receiver.is(rdx));
-  DCHECK(key.is(rcx));
-
-  Label slow, notin;
-  Operand mapped_location = GenerateMappedArgumentsLookup(
-      masm, receiver, key, rbx, rax, rdi, &notin, &slow);
-  __ movp(rax, mapped_location);
-  __ Ret();
-  __ bind(&notin);
-  // The unmapped lookup expects that the parameter map is in rbx.
-  Operand unmapped_location =
-      GenerateUnmappedArgumentsLookup(masm, key, rbx, rax, &slow);
-  __ CompareRoot(unmapped_location, Heap::kTheHoleValueRootIndex);
-  __ j(equal, &slow);
-  __ movp(rax, unmapped_location);
-  __ Ret();
-  __ bind(&slow);
-  GenerateMiss(masm);
-}
-
-
 void KeyedStoreIC::GenerateSloppyArguments(MacroAssembler* masm) {
   // The return address is on the stack.
   Label slow, notin;
   Register receiver = StoreDescriptor::ReceiverRegister();
   Register name = StoreDescriptor::NameRegister();
   Register value = StoreDescriptor::ValueRegister();
   DCHECK(receiver.is(rdx));
   DCHECK(name.is(rcx));
   DCHECK(value.is(rax));
 
@@ skipping 246 matching lines @@
   Condition cc =
       (check == ENABLE_INLINED_SMI_CHECK)
           ? (*jmp_address == Assembler::kJncShortOpcode ? not_zero : zero)
           : (*jmp_address == Assembler::kJnzShortOpcode ? not_carry : carry);
   *jmp_address = static_cast<byte>(Assembler::kJccShortPrefix | cc);
 }
 }
 }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64