Move IC code into a subdir and move ic-compilation related code from stub-cache into ic-compiler

src/arm/ic-arm.cc

Index: src/arm/ic-arm.cc
diff --git a/src/arm/ic-arm.cc b/src/arm/ic-arm.cc
deleted file mode 100644
index d1add6d2ff2a8431cca02c823e3b5957b8553fcb..0000000000000000000000000000000000000000
--- a/src/arm/ic-arm.cc
+++ /dev/null
@@ -1,1242 +0,0 @@
-// 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/arm/assembler-arm.h"
-#include "src/code-stubs.h"
-#include "src/codegen.h"
-#include "src/disasm.h"
-#include "src/ic-inl.h"
-#include "src/runtime.h"
-#include "src/stub-cache.h"
-
-namespace v8 {
-namespace internal {
-
-
-// ----------------------------------------------------------------------------
-// Static IC stub generators.
-//
-
-#define __ ACCESS_MASM(masm)
-
-
-static void GenerateGlobalInstanceTypeCheck(MacroAssembler* masm,
-                                            Register type,
-                                            Label* global_object) {
-  // Register usage:
-  //   type: holds the receiver instance type on entry.
-  __ cmp(type, Operand(JS_GLOBAL_OBJECT_TYPE));
-  __ b(eq, global_object);
-  __ cmp(type, Operand(JS_BUILTINS_OBJECT_TYPE));
-  __ b(eq, global_object);
-  __ cmp(type, Operand(JS_GLOBAL_PROXY_TYPE));
-  __ b(eq, global_object);
-}
-
-
-// Helper function used from LoadIC GenerateNormal.
-//
-// elements: Property dictionary. It is not clobbered if a jump to the miss
-//           label is done.
-// name:     Property name. It is not clobbered if a jump to the miss label is
-//           done
-// result:   Register for the result. It is only updated if a jump to the miss
-//           label is not done. Can be the same as elements or name clobbering
-//           one of these in the case of not jumping to the miss label.
-// The two scratch registers need to be different from elements, name and
-// result.
-// The generated code assumes that the receiver has slow properties,
-// is not a global object and does not have interceptors.
-static void GenerateDictionaryLoad(MacroAssembler* masm,
-                                   Label* miss,
-                                   Register elements,
-                                   Register name,
-                                   Register result,
-                                   Register scratch1,
-                                   Register scratch2) {
-  // Main use of the scratch registers.
-  // scratch1: Used as temporary and to hold the capacity of the property
-  //           dictionary.
-  // scratch2: Used as temporary.
-  Label done;
-
-  // Probe the dictionary.
-  NameDictionaryLookupStub::GeneratePositiveLookup(masm,
-                                                   miss,
-                                                   &done,
-                                                   elements,
-                                                   name,
-                                                   scratch1,
-                                                   scratch2);
-
-  // If probing finds an entry check that the value is a normal
-  // property.
-  __ bind(&done);  // scratch2 == elements + 4 * index
-  const int kElementsStartOffset = NameDictionary::kHeaderSize +
-      NameDictionary::kElementsStartIndex * kPointerSize;
-  const int kDetailsOffset = kElementsStartOffset + 2 * kPointerSize;
-  __ ldr(scratch1, FieldMemOperand(scratch2, kDetailsOffset));
-  __ tst(scratch1, Operand(PropertyDetails::TypeField::kMask << kSmiTagSize));
-  __ b(ne, miss);
-
-  // Get the value at the masked, scaled index and return.
-  __ ldr(result,
-         FieldMemOperand(scratch2, kElementsStartOffset + 1 * kPointerSize));
-}
-
-
-// Helper function used from StoreIC::GenerateNormal.
-//
-// elements: Property dictionary. It is not clobbered if a jump to the miss
-//           label is done.
-// name:     Property name. It is not clobbered if a jump to the miss label is
-//           done
-// value:    The value to store.
-// The two scratch registers need to be different from elements, name and
-// result.
-// The generated code assumes that the receiver has slow properties,
-// is not a global object and does not have interceptors.
-static void GenerateDictionaryStore(MacroAssembler* masm,
-                                    Label* miss,
-                                    Register elements,
-                                    Register name,
-                                    Register value,
-                                    Register scratch1,
-                                    Register scratch2) {
-  // Main use of the scratch registers.
-  // scratch1: Used as temporary and to hold the capacity of the property
-  //           dictionary.
-  // scratch2: Used as temporary.
-  Label done;
-
-  // Probe the dictionary.
-  NameDictionaryLookupStub::GeneratePositiveLookup(masm,
-                                                   miss,
-                                                   &done,
-                                                   elements,
-                                                   name,
-                                                   scratch1,
-                                                   scratch2);
-
-  // If probing finds an entry in the dictionary check that the value
-  // is a normal property that is not read only.
-  __ bind(&done);  // scratch2 == elements + 4 * index
-  const int kElementsStartOffset = NameDictionary::kHeaderSize +
-      NameDictionary::kElementsStartIndex * kPointerSize;
-  const int kDetailsOffset = kElementsStartOffset + 2 * kPointerSize;
-  const int kTypeAndReadOnlyMask =
-      (PropertyDetails::TypeField::kMask |
-       PropertyDetails::AttributesField::encode(READ_ONLY)) << kSmiTagSize;
-  __ ldr(scratch1, FieldMemOperand(scratch2, kDetailsOffset));
-  __ tst(scratch1, Operand(kTypeAndReadOnlyMask));
-  __ b(ne, miss);
-
-  // Store the value at the masked, scaled index and return.
-  const int kValueOffset = kElementsStartOffset + kPointerSize;
-  __ add(scratch2, scratch2, Operand(kValueOffset - kHeapObjectTag));
-  __ str(value, MemOperand(scratch2));
-
-  // Update the write barrier. Make sure not to clobber the value.
-  __ mov(scratch1, value);
-  __ RecordWrite(
-      elements, scratch2, scratch1, kLRHasNotBeenSaved, kDontSaveFPRegs);
-}
-
-
-// Checks the receiver for special cases (value type, slow case bits).
-// Falls through for regular JS object.
-static void GenerateKeyedLoadReceiverCheck(MacroAssembler* masm,
-                                           Register receiver,
-                                           Register map,
-                                           Register scratch,
-                                           int interceptor_bit,
-                                           Label* slow) {
-  // Check that the object isn't a smi.
-  __ JumpIfSmi(receiver, slow);
-  // Get the map of the receiver.
-  __ ldr(map, FieldMemOperand(receiver, HeapObject::kMapOffset));
-  // Check bit field.
-  __ ldrb(scratch, FieldMemOperand(map, Map::kBitFieldOffset));
-  __ tst(scratch,
-         Operand((1 << Map::kIsAccessCheckNeeded) | (1 << interceptor_bit)));
-  __ b(ne, slow);
-  // Check that the object is some kind of JS object EXCEPT JS Value type.
-  // In the case that the object is a value-wrapper object,
-  // we enter the runtime system to make sure that indexing into string
-  // objects work as intended.
-  DCHECK(JS_OBJECT_TYPE > JS_VALUE_TYPE);
-  __ ldrb(scratch, FieldMemOperand(map, Map::kInstanceTypeOffset));
-  __ cmp(scratch, Operand(JS_OBJECT_TYPE));
-  __ b(lt, slow);
-}
-
-
-// Loads an indexed element from a fast case array.
-// If not_fast_array is NULL, doesn't perform the elements map check.
-static void GenerateFastArrayLoad(MacroAssembler* masm,
-                                  Register receiver,
-                                  Register key,
-                                  Register elements,
-                                  Register scratch1,
-                                  Register scratch2,
-                                  Register result,
-                                  Label* not_fast_array,
-                                  Label* out_of_range) {
-  // Register use:
-  //
-  // receiver - holds the receiver on entry.
-  //            Unchanged unless 'result' is the same register.
-  //
-  // key      - holds the smi key on entry.
-  //            Unchanged unless 'result' is the same register.
-  //
-  // elements - holds the elements of the receiver on exit.
-  //
-  // result   - holds the result on exit if the load succeeded.
-  //            Allowed to be the the same as 'receiver' or 'key'.
-  //            Unchanged on bailout so 'receiver' and 'key' can be safely
-  //            used by further computation.
-  //
-  // Scratch registers:
-  //
-  // scratch1 - used to hold elements map and elements length.
-  //            Holds the elements map if not_fast_array branch is taken.
-  //
-  // scratch2 - used to hold the loaded value.
-
-  __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
-  if (not_fast_array != NULL) {
-    // Check that the object is in fast mode and writable.
-    __ ldr(scratch1, FieldMemOperand(elements, HeapObject::kMapOffset));
-    __ LoadRoot(ip, Heap::kFixedArrayMapRootIndex);
-    __ cmp(scratch1, ip);
-    __ b(ne, not_fast_array);
-  } else {
-    __ AssertFastElements(elements);
-  }
-  // Check that the key (index) is within bounds.
-  __ ldr(scratch1, FieldMemOperand(elements, FixedArray::kLengthOffset));
-  __ cmp(key, Operand(scratch1));
-  __ b(hs, out_of_range);
-  // Fast case: Do the load.
-  __ add(scratch1, elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
-  __ ldr(scratch2, MemOperand::PointerAddressFromSmiKey(scratch1, key));
-  __ LoadRoot(ip, Heap::kTheHoleValueRootIndex);
-  __ cmp(scratch2, ip);
-  // In case the loaded value is the_hole we have to consult GetProperty
-  // to ensure the prototype chain is searched.
-  __ b(eq, out_of_range);
-  __ mov(result, scratch2);
-}
-
-
-// Checks whether a key is an array index string or a unique name.
-// Falls through if a key is a unique name.
-static void GenerateKeyNameCheck(MacroAssembler* masm,
-                                 Register key,
-                                 Register map,
-                                 Register hash,
-                                 Label* index_string,
-                                 Label* not_unique) {
-  // The key is not a smi.
-  Label unique;
-  // Is it a name?
-  __ CompareObjectType(key, map, hash, LAST_UNIQUE_NAME_TYPE);
-  __ b(hi, not_unique);
-  STATIC_ASSERT(LAST_UNIQUE_NAME_TYPE == FIRST_NONSTRING_TYPE);
-  __ b(eq, &unique);
-
-  // Is the string an array index, with cached numeric value?
-  __ ldr(hash, FieldMemOperand(key, Name::kHashFieldOffset));
-  __ tst(hash, Operand(Name::kContainsCachedArrayIndexMask));
-  __ b(eq, index_string);
-
-  // Is the string internalized? We know it's a string, so a single
-  // bit test is enough.
-  // map: key map
-  __ ldrb(hash, FieldMemOperand(map, Map::kInstanceTypeOffset));
-  STATIC_ASSERT(kInternalizedTag == 0);
-  __ tst(hash, Operand(kIsNotInternalizedMask));
-  __ b(ne, not_unique);
-
-  __ bind(&unique);
-}
-
-
-void LoadIC::GenerateMegamorphic(MacroAssembler* masm) {
-  // The return address is in lr.
-  Register receiver = ReceiverRegister();
-  Register name = NameRegister();
-  DCHECK(receiver.is(r1));
-  DCHECK(name.is(r2));
-
-  // Probe the stub cache.
-  Code::Flags flags = Code::RemoveTypeAndHolderFromFlags(
-      Code::ComputeHandlerFlags(Code::LOAD_IC));
-  masm->isolate()->stub_cache()->GenerateProbe(
-      masm, flags, receiver, name, r3, r4, r5, r6);
-
-  // Cache miss: Jump to runtime.
-  GenerateMiss(masm);
-}
-
-
-void LoadIC::GenerateNormal(MacroAssembler* masm) {
-  Register dictionary = r0;
-  DCHECK(!dictionary.is(ReceiverRegister()));
-  DCHECK(!dictionary.is(NameRegister()));
-
-  Label slow;
-
-  __ ldr(dictionary,
-         FieldMemOperand(ReceiverRegister(), JSObject::kPropertiesOffset));
-  GenerateDictionaryLoad(masm, &slow, dictionary, NameRegister(), r0, r3, r4);
-  __ Ret();
-
-  // Dictionary load failed, go slow (but don't miss).
-  __ bind(&slow);
-  GenerateRuntimeGetProperty(masm);
-}
-
-
-// A register that isn't one of the parameters to the load ic.
-static const Register LoadIC_TempRegister() { return r3; }
-
-
-void LoadIC::GenerateMiss(MacroAssembler* masm) {
-  // The return address is in lr.
-  Isolate* isolate = masm->isolate();
-
-  __ IncrementCounter(isolate->counters()->load_miss(), 1, r3, r4);
-
-  __ mov(LoadIC_TempRegister(), ReceiverRegister());
-  __ Push(LoadIC_TempRegister(), NameRegister());
-
-  // Perform tail call to the entry.
-  ExternalReference ref =
-      ExternalReference(IC_Utility(kLoadIC_Miss), isolate);
-  __ TailCallExternalReference(ref, 2, 1);
-}
-
-
-void LoadIC::GenerateRuntimeGetProperty(MacroAssembler* masm) {
-  // The return address is in lr.
-
-  __ mov(LoadIC_TempRegister(), ReceiverRegister());
-  __ Push(LoadIC_TempRegister(), NameRegister());
-
-  __ TailCallRuntime(Runtime::kGetProperty, 2, 1);
-}
-
-
-static MemOperand GenerateMappedArgumentsLookup(MacroAssembler* masm,
-                                                Register object,
-                                                Register key,
-                                                Register scratch1,
-                                                Register scratch2,
-                                                Register scratch3,
-                                                Label* unmapped_case,
-                                                Label* slow_case) {
-  Heap* heap = masm->isolate()->heap();
-
-  // Check that the receiver is a JSObject. Because of the map check
-  // later, we do not need to check for interceptors or whether it
-  // requires access checks.
-  __ JumpIfSmi(object, slow_case);
-  // Check that the object is some kind of JSObject.
-  __ CompareObjectType(object, scratch1, scratch2, FIRST_JS_RECEIVER_TYPE);
-  __ b(lt, slow_case);
-
-  // Check that the key is a positive smi.
-  __ tst(key, Operand(0x80000001));
-  __ b(ne, slow_case);
-
-  // Load the elements into scratch1 and check its map.
-  Handle<Map> arguments_map(heap->sloppy_arguments_elements_map());
-  __ ldr(scratch1, FieldMemOperand(object, JSObject::kElementsOffset));
-  __ CheckMap(scratch1, scratch2, arguments_map, slow_case, DONT_DO_SMI_CHECK);
-
-  // Check if element is in the range of mapped arguments. If not, jump
-  // to the unmapped lookup with the parameter map in scratch1.
-  __ ldr(scratch2, FieldMemOperand(scratch1, FixedArray::kLengthOffset));
-  __ sub(scratch2, scratch2, Operand(Smi::FromInt(2)));
-  __ cmp(key, Operand(scratch2));
-  __ b(cs, unmapped_case);
-
-  // Load element index and check whether it is the hole.
-  const int kOffset =
-      FixedArray::kHeaderSize + 2 * kPointerSize - kHeapObjectTag;
-
-  __ mov(scratch3, Operand(kPointerSize >> 1));
-  __ mul(scratch3, key, scratch3);
-  __ add(scratch3, scratch3, Operand(kOffset));
-
-  __ ldr(scratch2, MemOperand(scratch1, scratch3));
-  __ LoadRoot(scratch3, Heap::kTheHoleValueRootIndex);
-  __ cmp(scratch2, scratch3);
-  __ b(eq, unmapped_case);
-
-  // Load value from context and return it. We can reuse scratch1 because
-  // we do not jump to the unmapped lookup (which requires the parameter
-  // map in scratch1).
-  __ ldr(scratch1, FieldMemOperand(scratch1, FixedArray::kHeaderSize));
-  __ mov(scratch3, Operand(kPointerSize >> 1));
-  __ mul(scratch3, scratch2, scratch3);
-  __ add(scratch3, scratch3, Operand(Context::kHeaderSize - kHeapObjectTag));
-  return MemOperand(scratch1, scratch3);
-}
-
-
-static MemOperand GenerateUnmappedArgumentsLookup(MacroAssembler* masm,
-                                                  Register key,
-                                                  Register parameter_map,
-                                                  Register scratch,
-                                                  Label* slow_case) {
-  // Element is in arguments backing store, which is referenced by the
-  // second element of the parameter_map. The parameter_map register
-  // must be loaded with the parameter map of the arguments object and is
-  // overwritten.
-  const int kBackingStoreOffset = FixedArray::kHeaderSize + kPointerSize;
-  Register backing_store = parameter_map;
-  __ ldr(backing_store, FieldMemOperand(parameter_map, kBackingStoreOffset));
-  Handle<Map> fixed_array_map(masm->isolate()->heap()->fixed_array_map());
-  __ CheckMap(backing_store, scratch, fixed_array_map, slow_case,
-              DONT_DO_SMI_CHECK);
-  __ 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 = ReceiverRegister();
-  Register key = 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 = ReceiverRegister();
-  Register key = NameRegister();
-  Register value = ValueRegister();
-  DCHECK(receiver.is(r1));
-  DCHECK(key.is(r2));
-  DCHECK(value.is(r0));
-
-  Label slow, notin;
-  MemOperand mapped_location = GenerateMappedArgumentsLookup(
-      masm, receiver, key, r3, r4, r5, &notin, &slow);
-  __ str(value, mapped_location);
-  __ add(r6, r3, r5);
-  __ mov(r9, value);
-  __ RecordWrite(r3, r6, r9, kLRHasNotBeenSaved, kDontSaveFPRegs);
-  __ Ret();
-  __ bind(&notin);
-  // The unmapped lookup expects that the parameter map is in r3.
-  MemOperand unmapped_location =
-      GenerateUnmappedArgumentsLookup(masm, key, r3, r4, &slow);
-  __ str(value, unmapped_location);
-  __ add(r6, r3, r4);
-  __ mov(r9, value);
-  __ RecordWrite(r3, r6, r9, kLRHasNotBeenSaved, kDontSaveFPRegs);
-  __ Ret();
-  __ bind(&slow);
-  GenerateMiss(masm);
-}
-
-
-void KeyedLoadIC::GenerateMiss(MacroAssembler* masm) {
-  // The return address is in lr.
-  Isolate* isolate = masm->isolate();
-
-  __ IncrementCounter(isolate->counters()->keyed_load_miss(), 1, r3, r4);
-
-  __ Push(ReceiverRegister(), NameRegister());
-
-  // Perform tail call to the entry.
-  ExternalReference ref =
-      ExternalReference(IC_Utility(kKeyedLoadIC_Miss), isolate);
-
-  __ TailCallExternalReference(ref, 2, 1);
-}
-
-
-// IC register specifications
-const Register LoadIC::ReceiverRegister() { return r1; }
-const Register LoadIC::NameRegister() { return r2; }
-
-
-const Register LoadIC::SlotRegister() {
-  DCHECK(FLAG_vector_ics);
-  return r0;
-}
-
-
-const Register LoadIC::VectorRegister() {
-  DCHECK(FLAG_vector_ics);
-  return r3;
-}
-
-
-const Register StoreIC::ReceiverRegister() { return r1; }
-const Register StoreIC::NameRegister() { return r2; }
-const Register StoreIC::ValueRegister() { return r0; }
-
-
-const Register KeyedStoreIC::MapRegister() {
-  return r3;
-}
-
-
-void KeyedLoadIC::GenerateRuntimeGetProperty(MacroAssembler* masm) {
-  // The return address is in lr.
-
-  __ Push(ReceiverRegister(), NameRegister());
-
-  __ TailCallRuntime(Runtime::kKeyedGetProperty, 2, 1);
-}
-
-
-void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) {
-  // The return address is in lr.
-  Label slow, check_name, index_smi, index_name, property_array_property;
-  Label probe_dictionary, check_number_dictionary;
-
-  Register key = NameRegister();
-  Register receiver = ReceiverRegister();
-  DCHECK(key.is(r2));
-  DCHECK(receiver.is(r1));
-
-  Isolate* isolate = masm->isolate();
-
-  // Check that the key is a smi.
-  __ JumpIfNotSmi(key, &check_name);
-  __ bind(&index_smi);
-  // Now the key is known to be a smi. This place is also jumped to from below
-  // where a numeric string is converted to a smi.
-
-  GenerateKeyedLoadReceiverCheck(
-      masm, receiver, r0, r3, Map::kHasIndexedInterceptor, &slow);
-
-  // Check the receiver's map to see if it has fast elements.
-  __ CheckFastElements(r0, r3, &check_number_dictionary);
-
-  GenerateFastArrayLoad(
-      masm, receiver, key, r0, r3, r4, r0, NULL, &slow);
-  __ IncrementCounter(isolate->counters()->keyed_load_generic_smi(), 1, r4, r3);
-  __ Ret();
-
-  __ bind(&check_number_dictionary);
-  __ ldr(r4, FieldMemOperand(receiver, JSObject::kElementsOffset));
-  __ ldr(r3, FieldMemOperand(r4, JSObject::kMapOffset));
-
-  // Check whether the elements is a number dictionary.
-  // r3: elements map
-  // r4: elements
-  __ LoadRoot(ip, Heap::kHashTableMapRootIndex);
-  __ cmp(r3, ip);
-  __ b(ne, &slow);
-  __ SmiUntag(r0, key);
-  __ LoadFromNumberDictionary(&slow, r4, key, r0, r0, r3, r5);
-  __ Ret();
-
-  // Slow case, key and receiver still in r2 and r1.
-  __ bind(&slow);
-  __ IncrementCounter(isolate->counters()->keyed_load_generic_slow(),
-                      1, r4, r3);
-  GenerateRuntimeGetProperty(masm);
-
-  __ bind(&check_name);
-  GenerateKeyNameCheck(masm, key, r0, r3, &index_name, &slow);
-
-  GenerateKeyedLoadReceiverCheck(
-      masm, receiver, r0, r3, Map::kHasNamedInterceptor, &slow);
-
-  // If the receiver is a fast-case object, check the keyed lookup
-  // cache. Otherwise probe the dictionary.
-  __ ldr(r3, FieldMemOperand(receiver, JSObject::kPropertiesOffset));
-  __ ldr(r4, FieldMemOperand(r3, HeapObject::kMapOffset));
-  __ LoadRoot(ip, Heap::kHashTableMapRootIndex);
-  __ cmp(r4, ip);
-  __ b(eq, &probe_dictionary);
-
-  // Load the map of the receiver, compute the keyed lookup cache hash
-  // based on 32 bits of the map pointer and the name hash.
-  __ ldr(r0, FieldMemOperand(receiver, HeapObject::kMapOffset));
-  __ mov(r3, Operand(r0, ASR, KeyedLookupCache::kMapHashShift));
-  __ ldr(r4, FieldMemOperand(key, Name::kHashFieldOffset));
-  __ eor(r3, r3, Operand(r4, ASR, Name::kHashShift));
-  int mask = KeyedLookupCache::kCapacityMask & KeyedLookupCache::kHashMask;
-  __ And(r3, r3, Operand(mask));
-
-  // Load the key (consisting of map and unique name) from the cache and
-  // check for match.
-  Label load_in_object_property;
-  static const int kEntriesPerBucket = KeyedLookupCache::kEntriesPerBucket;
-  Label hit_on_nth_entry[kEntriesPerBucket];
-  ExternalReference cache_keys =
-      ExternalReference::keyed_lookup_cache_keys(isolate);
-
-  __ mov(r4, Operand(cache_keys));
-  __ add(r4, r4, Operand(r3, LSL, kPointerSizeLog2 + 1));
-
-  for (int i = 0; i < kEntriesPerBucket - 1; i++) {
-    Label try_next_entry;
-    // Load map and move r4 to next entry.
-    __ ldr(r5, MemOperand(r4, kPointerSize * 2, PostIndex));
-    __ cmp(r0, r5);
-    __ b(ne, &try_next_entry);
-    __ ldr(r5, MemOperand(r4, -kPointerSize));  // Load name
-    __ cmp(key, r5);
-    __ b(eq, &hit_on_nth_entry[i]);
-    __ bind(&try_next_entry);
-  }
-
-  // Last entry: Load map and move r4 to name.
-  __ ldr(r5, MemOperand(r4, kPointerSize, PostIndex));
-  __ cmp(r0, r5);
-  __ b(ne, &slow);
-  __ ldr(r5, MemOperand(r4));
-  __ cmp(key, r5);
-  __ b(ne, &slow);
-
-  // Get field offset.
-  // r0     : receiver's map
-  // r3     : lookup cache index
-  ExternalReference cache_field_offsets =
-      ExternalReference::keyed_lookup_cache_field_offsets(isolate);
-
-  // Hit on nth entry.
-  for (int i = kEntriesPerBucket - 1; i >= 0; i--) {
-    __ bind(&hit_on_nth_entry[i]);
-    __ mov(r4, Operand(cache_field_offsets));
-    if (i != 0) {
-      __ add(r3, r3, Operand(i));
-    }
-    __ ldr(r5, MemOperand(r4, r3, LSL, kPointerSizeLog2));
-    __ ldrb(r6, FieldMemOperand(r0, Map::kInObjectPropertiesOffset));
-    __ sub(r5, r5, r6, SetCC);
-    __ b(ge, &property_array_property);
-    if (i != 0) {
-      __ jmp(&load_in_object_property);
-    }
-  }
-
-  // Load in-object property.
-  __ bind(&load_in_object_property);
-  __ ldrb(r6, FieldMemOperand(r0, Map::kInstanceSizeOffset));
-  __ add(r6, r6, r5);  // Index from start of object.
-  __ sub(receiver, receiver, Operand(kHeapObjectTag));  // Remove the heap tag.
-  __ ldr(r0, MemOperand(receiver, r6, LSL, kPointerSizeLog2));
-  __ IncrementCounter(isolate->counters()->keyed_load_generic_lookup_cache(),
-                      1, r4, r3);
-  __ Ret();
-
-  // Load property array property.
-  __ bind(&property_array_property);
-  __ ldr(receiver, FieldMemOperand(receiver, JSObject::kPropertiesOffset));
-  __ add(receiver, receiver, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
-  __ ldr(r0, MemOperand(receiver, r5, LSL, kPointerSizeLog2));
-  __ IncrementCounter(isolate->counters()->keyed_load_generic_lookup_cache(),
-                      1, r4, r3);
-  __ Ret();
-
-  // Do a quick inline probe of the receiver's dictionary, if it
-  // exists.
-  __ bind(&probe_dictionary);
-  // r3: elements
-  __ ldr(r0, FieldMemOperand(receiver, HeapObject::kMapOffset));
-  __ ldrb(r0, FieldMemOperand(r0, Map::kInstanceTypeOffset));
-  GenerateGlobalInstanceTypeCheck(masm, r0, &slow);
-  // Load the property to r0.
-  GenerateDictionaryLoad(masm, &slow, r3, key, r0, r5, r4);
-  __ IncrementCounter(
-      isolate->counters()->keyed_load_generic_symbol(), 1, r4, 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 = ReceiverRegister();
-  Register index = 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 KeyedLoadIC::GenerateIndexedInterceptor(MacroAssembler* masm) {
-  // Return address is in lr.
-  Label slow;
-
-  Register receiver = ReceiverRegister();
-  Register key = NameRegister();
-  Register scratch1 = r3;
-  Register scratch2 = r4;
-  DCHECK(!scratch1.is(receiver) && !scratch1.is(key));
-  DCHECK(!scratch2.is(receiver) && !scratch2.is(key));
-
-  // Check that the receiver isn't a smi.
-  __ JumpIfSmi(receiver, &slow);
-
-  // Check that the key is an array index, that is Uint32.
-  __ NonNegativeSmiTst(key);
-  __ b(ne, &slow);
-
-  // Get the map of the receiver.
-  __ ldr(scratch1, FieldMemOperand(receiver, HeapObject::kMapOffset));
-
-  // Check that it has indexed interceptor and access checks
-  // are not enabled for this object.
-  __ ldrb(scratch2, FieldMemOperand(scratch1, Map::kBitFieldOffset));
-  __ and_(scratch2, scratch2, Operand(kSlowCaseBitFieldMask));
-  __ cmp(scratch2, Operand(1 << Map::kHasIndexedInterceptor));
-  __ b(ne, &slow);
-
-  // Everything is fine, call runtime.
-  __ Push(receiver, key);  // Receiver, key.
-
-  // Perform tail call to the entry.
-  __ TailCallExternalReference(
-      ExternalReference(IC_Utility(kLoadElementWithInterceptor),
-                        masm->isolate()),
-      2, 1);
-
-  __ bind(&slow);
-  GenerateMiss(masm);
-}
-
-
-void KeyedStoreIC::GenerateMiss(MacroAssembler* masm) {
-  // Push receiver, key and value for runtime call.
-  __ Push(ReceiverRegister(), NameRegister(), ValueRegister());
-
-  ExternalReference ref =
-      ExternalReference(IC_Utility(kKeyedStoreIC_Miss), masm->isolate());
-  __ TailCallExternalReference(ref, 3, 1);
-}
-
-
-void StoreIC::GenerateSlow(MacroAssembler* masm) {
-  // Push receiver, key and value for runtime call.
-  __ Push(ReceiverRegister(), NameRegister(), ValueRegister());
-
-  // The slow case calls into the runtime to complete the store without causing
-  // an IC miss that would otherwise cause a transition to the generic stub.
-  ExternalReference ref =
-      ExternalReference(IC_Utility(kStoreIC_Slow), masm->isolate());
-  __ TailCallExternalReference(ref, 3, 1);
-}
-
-
-void KeyedStoreIC::GenerateSlow(MacroAssembler* masm) {
-  // Push receiver, key and value for runtime call.
-  __ Push(ReceiverRegister(), NameRegister(), ValueRegister());
-
-  // The slow case calls into the runtime to complete the store without causing
-  // an IC miss that would otherwise cause a transition to the generic stub.
-  ExternalReference ref =
-      ExternalReference(IC_Utility(kKeyedStoreIC_Slow), masm->isolate());
-  __ TailCallExternalReference(ref, 3, 1);
-}
-
-
-void KeyedStoreIC::GenerateRuntimeSetProperty(MacroAssembler* masm,
-                                              StrictMode strict_mode) {
-  // Push receiver, key and value for runtime call.
-  __ Push(ReceiverRegister(), NameRegister(), ValueRegister());
-
-  __ mov(r0, Operand(Smi::FromInt(strict_mode)));   // Strict mode.
-  __ Push(r0);
-
-  __ TailCallRuntime(Runtime::kSetProperty, 4, 1);
-}
-
-
-static void KeyedStoreGenerateGenericHelper(
-    MacroAssembler* masm,
-    Label* fast_object,
-    Label* fast_double,
-    Label* slow,
-    KeyedStoreCheckMap check_map,
-    KeyedStoreIncrementLength increment_length,
-    Register value,
-    Register key,
-    Register receiver,
-    Register receiver_map,
-    Register elements_map,
-    Register elements) {
-  Label transition_smi_elements;
-  Label finish_object_store, non_double_value, transition_double_elements;
-  Label fast_double_without_map_check;
-
-  // Fast case: Do the store, could be either Object or double.
-  __ bind(fast_object);
-  Register scratch_value = r4;
-  Register address = r5;
-  if (check_map == kCheckMap) {
-    __ ldr(elements_map, FieldMemOperand(elements, HeapObject::kMapOffset));
-    __ cmp(elements_map,
-           Operand(masm->isolate()->factory()->fixed_array_map()));
-    __ b(ne, fast_double);
-  }
-
-  // HOLECHECK: guards "A[i] = V"
-  // We have to go to the runtime if the current value is the hole because
-  // there may be a callback on the element
-  Label holecheck_passed1;
-  __ add(address, elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
-  __ ldr(scratch_value,
-         MemOperand::PointerAddressFromSmiKey(address, key, PreIndex));
-  __ cmp(scratch_value, Operand(masm->isolate()->factory()->the_hole_value()));
-  __ b(ne, &holecheck_passed1);
-  __ JumpIfDictionaryInPrototypeChain(receiver, elements_map, scratch_value,
-                                      slow);
-
-  __ bind(&holecheck_passed1);
-
-  // Smi stores don't require further checks.
-  Label non_smi_value;
-  __ JumpIfNotSmi(value, &non_smi_value);
-
-  if (increment_length == kIncrementLength) {
-    // Add 1 to receiver->length.
-    __ add(scratch_value, key, Operand(Smi::FromInt(1)));
-    __ str(scratch_value, FieldMemOperand(receiver, JSArray::kLengthOffset));
-  }
-  // It's irrelevant whether array is smi-only or not when writing a smi.
-  __ add(address, elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
-  __ str(value, MemOperand::PointerAddressFromSmiKey(address, key));
-  __ Ret();
-
-  __ bind(&non_smi_value);
-  // Escape to elements kind transition case.
-  __ CheckFastObjectElements(receiver_map, scratch_value,
-                             &transition_smi_elements);
-
-  // Fast elements array, store the value to the elements backing store.
-  __ bind(&finish_object_store);
-  if (increment_length == kIncrementLength) {
-    // Add 1 to receiver->length.
-    __ add(scratch_value, key, Operand(Smi::FromInt(1)));
-    __ str(scratch_value, FieldMemOperand(receiver, JSArray::kLengthOffset));
-  }
-  __ add(address, elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
-  __ add(address, address, Operand::PointerOffsetFromSmiKey(key));
-  __ str(value, MemOperand(address));
-  // Update write barrier for the elements array address.
-  __ mov(scratch_value, value);  // Preserve the value which is returned.
-  __ RecordWrite(elements,
-                 address,
-                 scratch_value,
-                 kLRHasNotBeenSaved,
-                 kDontSaveFPRegs,
-                 EMIT_REMEMBERED_SET,
-                 OMIT_SMI_CHECK);
-  __ Ret();
-
-  __ bind(fast_double);
-  if (check_map == kCheckMap) {
-    // Check for fast double array case. If this fails, call through to the
-    // runtime.
-    __ CompareRoot(elements_map, Heap::kFixedDoubleArrayMapRootIndex);
-    __ b(ne, slow);
-  }
-
-  // HOLECHECK: guards "A[i] double hole?"
-  // We have to see if the double version of the hole is present. If so
-  // go to the runtime.
-  __ add(address, elements,
-         Operand((FixedDoubleArray::kHeaderSize + sizeof(kHoleNanLower32))
-                 - kHeapObjectTag));
-  __ ldr(scratch_value,
-         MemOperand(address, key, LSL, kPointerSizeLog2, PreIndex));
-  __ cmp(scratch_value, Operand(kHoleNanUpper32));
-  __ b(ne, &fast_double_without_map_check);
-  __ JumpIfDictionaryInPrototypeChain(receiver, elements_map, scratch_value,
-                                      slow);
-
-  __ bind(&fast_double_without_map_check);
-  __ StoreNumberToDoubleElements(value, key, elements, r3, d0,
-                                 &transition_double_elements);
-  if (increment_length == kIncrementLength) {
-    // Add 1 to receiver->length.
-    __ add(scratch_value, key, Operand(Smi::FromInt(1)));
-    __ str(scratch_value, FieldMemOperand(receiver, JSArray::kLengthOffset));
-  }
-  __ Ret();
-
-  __ bind(&transition_smi_elements);
-  // Transition the array appropriately depending on the value type.
-  __ ldr(r4, FieldMemOperand(value, HeapObject::kMapOffset));
-  __ CompareRoot(r4, Heap::kHeapNumberMapRootIndex);
-  __ b(ne, &non_double_value);
-
-  // Value is a double. Transition FAST_SMI_ELEMENTS ->
-  // FAST_DOUBLE_ELEMENTS and complete the store.
-  __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS,
-                                         FAST_DOUBLE_ELEMENTS,
-                                         receiver_map,
-                                         r4,
-                                         slow);
-  AllocationSiteMode mode = AllocationSite::GetMode(FAST_SMI_ELEMENTS,
-                                                    FAST_DOUBLE_ELEMENTS);
-  ElementsTransitionGenerator::GenerateSmiToDouble(
-      masm, receiver, key, value, receiver_map, mode, slow);
-  __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
-  __ jmp(&fast_double_without_map_check);
-
-  __ bind(&non_double_value);
-  // Value is not a double, FAST_SMI_ELEMENTS -> FAST_ELEMENTS
-  __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS,
-                                         FAST_ELEMENTS,
-                                         receiver_map,
-                                         r4,
-                                         slow);
-  mode = AllocationSite::GetMode(FAST_SMI_ELEMENTS, FAST_ELEMENTS);
-  ElementsTransitionGenerator::GenerateMapChangeElementsTransition(
-      masm, receiver, key, value, receiver_map, mode, slow);
-  __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
-  __ jmp(&finish_object_store);
-
-  __ bind(&transition_double_elements);
-  // Elements are FAST_DOUBLE_ELEMENTS, but value is an Object that's not a
-  // HeapNumber. Make sure that the receiver is a Array with FAST_ELEMENTS and
-  // transition array from FAST_DOUBLE_ELEMENTS to FAST_ELEMENTS
-  __ LoadTransitionedArrayMapConditional(FAST_DOUBLE_ELEMENTS,
-                                         FAST_ELEMENTS,
-                                         receiver_map,
-                                         r4,
-                                         slow);
-  mode = AllocationSite::GetMode(FAST_DOUBLE_ELEMENTS, FAST_ELEMENTS);
-  ElementsTransitionGenerator::GenerateDoubleToObject(
-      masm, receiver, key, value, receiver_map, mode, slow);
-  __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
-  __ jmp(&finish_object_store);
-}
-
-
-void KeyedStoreIC::GenerateGeneric(MacroAssembler* masm,
-                                   StrictMode strict_mode) {
-  // ---------- S t a t e --------------
-  //  -- r0     : value
-  //  -- r1     : key
-  //  -- r2     : receiver
-  //  -- lr     : return address
-  // -----------------------------------
-  Label slow, fast_object, fast_object_grow;
-  Label fast_double, fast_double_grow;
-  Label array, extra, check_if_double_array;
-
-  // Register usage.
-  Register value = ValueRegister();
-  Register key = NameRegister();
-  Register receiver = ReceiverRegister();
-  DCHECK(receiver.is(r1));
-  DCHECK(key.is(r2));
-  DCHECK(value.is(r0));
-  Register receiver_map = r3;
-  Register elements_map = r6;
-  Register elements = r9;  // Elements array of the receiver.
-  // r4 and r5 are used as general scratch registers.
-
-  // Check that the key is a smi.
-  __ JumpIfNotSmi(key, &slow);
-  // Check that the object isn't a smi.
-  __ JumpIfSmi(receiver, &slow);
-  // Get the map of the object.
-  __ ldr(receiver_map, FieldMemOperand(receiver, HeapObject::kMapOffset));
-  // Check that the receiver does not require access checks and is not observed.
-  // The generic stub does not perform map checks or handle observed objects.
-  __ ldrb(ip, FieldMemOperand(receiver_map, Map::kBitFieldOffset));
-  __ tst(ip, Operand(1 << Map::kIsAccessCheckNeeded | 1 << Map::kIsObserved));
-  __ b(ne, &slow);
-  // Check if the object is a JS array or not.
-  __ ldrb(r4, FieldMemOperand(receiver_map, Map::kInstanceTypeOffset));
-  __ cmp(r4, Operand(JS_ARRAY_TYPE));
-  __ b(eq, &array);
-  // Check that the object is some kind of JSObject.
-  __ cmp(r4, Operand(FIRST_JS_OBJECT_TYPE));
-  __ b(lt, &slow);
-
-  // Object case: Check key against length in the elements array.
-  __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
-  // Check array bounds. Both the key and the length of FixedArray are smis.
-  __ ldr(ip, FieldMemOperand(elements, FixedArray::kLengthOffset));
-  __ cmp(key, Operand(ip));
-  __ b(lo, &fast_object);
-
-  // Slow case, handle jump to runtime.
-  __ bind(&slow);
-  // Entry registers are intact.
-  // r0: value.
-  // r1: key.
-  // r2: receiver.
-  GenerateRuntimeSetProperty(masm, strict_mode);
-
-  // Extra capacity case: Check if there is extra capacity to
-  // perform the store and update the length. Used for adding one
-  // element to the array by writing to array[array.length].
-  __ bind(&extra);
-  // Condition code from comparing key and array length is still available.
-  __ b(ne, &slow);  // Only support writing to writing to array[array.length].
-  // Check for room in the elements backing store.
-  // Both the key and the length of FixedArray are smis.
-  __ ldr(ip, FieldMemOperand(elements, FixedArray::kLengthOffset));
-  __ cmp(key, Operand(ip));
-  __ b(hs, &slow);
-  __ ldr(elements_map, FieldMemOperand(elements, HeapObject::kMapOffset));
-  __ cmp(elements_map,
-         Operand(masm->isolate()->factory()->fixed_array_map()));
-  __ b(ne, &check_if_double_array);
-  __ jmp(&fast_object_grow);
-
-  __ bind(&check_if_double_array);
-  __ cmp(elements_map,
-         Operand(masm->isolate()->factory()->fixed_double_array_map()));
-  __ b(ne, &slow);
-  __ jmp(&fast_double_grow);
-
-  // Array case: Get the length and the elements array from the JS
-  // array. Check that the array is in fast mode (and writable); if it
-  // is the length is always a smi.
-  __ bind(&array);
-  __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
-
-  // Check the key against the length in the array.
-  __ ldr(ip, FieldMemOperand(receiver, JSArray::kLengthOffset));
-  __ cmp(key, Operand(ip));
-  __ b(hs, &extra);
-
-  KeyedStoreGenerateGenericHelper(masm, &fast_object, &fast_double,
-                                  &slow, kCheckMap, kDontIncrementLength,
-                                  value, key, receiver, receiver_map,
-                                  elements_map, elements);
-  KeyedStoreGenerateGenericHelper(masm, &fast_object_grow, &fast_double_grow,
-                                  &slow, kDontCheckMap, kIncrementLength,
-                                  value, key, receiver, receiver_map,
-                                  elements_map, elements);
-}
-
-
-void StoreIC::GenerateMegamorphic(MacroAssembler* masm) {
-  Register receiver = ReceiverRegister();
-  Register name = NameRegister();
-  DCHECK(receiver.is(r1));
-  DCHECK(name.is(r2));
-  DCHECK(ValueRegister().is(r0));
-
-  // Get the receiver from the stack and probe the stub cache.
-  Code::Flags flags = Code::RemoveTypeAndHolderFromFlags(
-      Code::ComputeHandlerFlags(Code::STORE_IC));
-
-  masm->isolate()->stub_cache()->GenerateProbe(
-      masm, flags, receiver, name, r3, r4, r5, r6);
-
-  // Cache miss: Jump to runtime.
-  GenerateMiss(masm);
-}
-
-
-void StoreIC::GenerateMiss(MacroAssembler* masm) {
-  __ Push(ReceiverRegister(), NameRegister(), ValueRegister());
-
-  // Perform tail call to the entry.
-  ExternalReference ref =
-      ExternalReference(IC_Utility(kStoreIC_Miss), masm->isolate());
-  __ TailCallExternalReference(ref, 3, 1);
-}
-
-
-void StoreIC::GenerateNormal(MacroAssembler* masm) {
-  Label miss;
-  Register receiver = ReceiverRegister();
-  Register name = NameRegister();
-  Register value = ValueRegister();
-  Register dictionary = r3;
-  DCHECK(receiver.is(r1));
-  DCHECK(name.is(r2));
-  DCHECK(value.is(r0));
-
-  __ ldr(dictionary, FieldMemOperand(receiver, JSObject::kPropertiesOffset));
-
-  GenerateDictionaryStore(masm, &miss, dictionary, name, value, r4, r5);
-  Counters* counters = masm->isolate()->counters();
-  __ IncrementCounter(counters->store_normal_hit(),
-                      1, r4, r5);
-  __ Ret();
-
-  __ bind(&miss);
-  __ IncrementCounter(counters->store_normal_miss(), 1, r4, r5);
-  GenerateMiss(masm);
-}
-
-
-void StoreIC::GenerateRuntimeSetProperty(MacroAssembler* masm,
-                                         StrictMode strict_mode) {
-  __ Push(ReceiverRegister(), NameRegister(), ValueRegister());
-
-  __ mov(r0, Operand(Smi::FromInt(strict_mode)));
-  __ Push(r0);
-
-  // Do tail-call to runtime routine.
-  __ TailCallRuntime(Runtime::kSetProperty, 4, 1);
-}
-
-
-#undef __
-
-
-Condition CompareIC::ComputeCondition(Token::Value op) {
-  switch (op) {
-    case Token::EQ_STRICT:
-    case Token::EQ:
-      return eq;
-    case Token::LT:
-      return lt;
-    case Token::GT:
-      return gt;
-    case Token::LTE:
-      return le;
-    case Token::GTE:
-      return ge;
-    default:
-      UNREACHABLE();
-      return kNoCondition;
-  }
-}
-
-
-bool CompareIC::HasInlinedSmiCode(Address address) {
-  // The address of the instruction following the call.
-  Address cmp_instruction_address =
-      Assembler::return_address_from_call_start(address);
-
-  // If the instruction following the call is not a cmp rx, #yyy, nothing
-  // was inlined.
-  Instr instr = Assembler::instr_at(cmp_instruction_address);
-  return Assembler::IsCmpImmediate(instr);
-}
-
-
-void PatchInlinedSmiCode(Address address, InlinedSmiCheck check) {
-  Address cmp_instruction_address =
-      Assembler::return_address_from_call_start(address);
-
-  // If the instruction following the call is not a cmp rx, #yyy, nothing
-  // was inlined.
-  Instr instr = Assembler::instr_at(cmp_instruction_address);
-  if (!Assembler::IsCmpImmediate(instr)) {
-    return;
-  }
-
-  // The delta to the start of the map check instruction and the
-  // condition code uses at the patched jump.
-  int delta = Assembler::GetCmpImmediateRawImmediate(instr);
-  delta +=
-      Assembler::GetCmpImmediateRegister(instr).code() * kOff12Mask;
-  // If the delta is 0 the instruction is cmp r0, #0 which also signals that
-  // nothing was inlined.
-  if (delta == 0) {
-    return;
-  }
-
-  if (FLAG_trace_ic) {
-    PrintF("[  patching ic at %p, cmp=%p, delta=%d\n",
-           address, cmp_instruction_address, delta);
-  }
-
-  Address patch_address =
-      cmp_instruction_address - delta * Instruction::kInstrSize;
-  Instr instr_at_patch = Assembler::instr_at(patch_address);
-  Instr branch_instr =
-      Assembler::instr_at(patch_address + Instruction::kInstrSize);
-  // This is patching a conditional "jump if not smi/jump if smi" site.
-  // Enabling by changing from
-  //   cmp rx, rx
-  //   b eq/ne, <target>
-  // to
-  //   tst rx, #kSmiTagMask
-  //   b ne/eq, <target>
-  // and vice-versa to be disabled again.
-  CodePatcher patcher(patch_address, 2);
-  Register reg = Assembler::GetRn(instr_at_patch);
-  if (check == ENABLE_INLINED_SMI_CHECK) {
-    DCHECK(Assembler::IsCmpRegister(instr_at_patch));
-    DCHECK_EQ(Assembler::GetRn(instr_at_patch).code(),
-              Assembler::GetRm(instr_at_patch).code());
-    patcher.masm()->tst(reg, Operand(kSmiTagMask));
-  } else {
-    DCHECK(check == DISABLE_INLINED_SMI_CHECK);
-    DCHECK(Assembler::IsTstImmediate(instr_at_patch));
-    patcher.masm()->cmp(reg, reg);
-  }
-  DCHECK(Assembler::IsBranch(branch_instr));
-  if (Assembler::GetCondition(branch_instr) == eq) {
-    patcher.EmitCondition(ne);
-  } else {
-    DCHECK(Assembler::GetCondition(branch_instr) == ne);
-    patcher.EmitCondition(eq);
-  }
-}
-
-
-} }  // namespace v8::internal
-
-#endif  // V8_TARGET_ARCH_ARM