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

src/arm/stub-cache-arm.cc

Index: src/arm/stub-cache-arm.cc
diff --git a/src/arm/stub-cache-arm.cc b/src/arm/stub-cache-arm.cc
deleted file mode 100644
index b8704037894a5cf09650635627a0cb16ba554d30..0000000000000000000000000000000000000000
--- a/src/arm/stub-cache-arm.cc
+++ /dev/null
@@ -1,1172 +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/codegen.h"
-#include "src/ic-inl.h"
-#include "src/stub-cache.h"
-
-namespace v8 {
-namespace internal {
-
-#define __ ACCESS_MASM(masm)
-
-
-static void ProbeTable(Isolate* isolate,
-                       MacroAssembler* masm,
-                       Code::Flags flags,
-                       StubCache::Table table,
-                       Register receiver,
-                       Register name,
-                       // Number of the cache entry, not scaled.
-                       Register offset,
-                       Register scratch,
-                       Register scratch2,
-                       Register offset_scratch) {
-  ExternalReference key_offset(isolate->stub_cache()->key_reference(table));
-  ExternalReference value_offset(isolate->stub_cache()->value_reference(table));
-  ExternalReference map_offset(isolate->stub_cache()->map_reference(table));
-
-  uint32_t key_off_addr = reinterpret_cast<uint32_t>(key_offset.address());
-  uint32_t value_off_addr = reinterpret_cast<uint32_t>(value_offset.address());
-  uint32_t map_off_addr = reinterpret_cast<uint32_t>(map_offset.address());
-
-  // Check the relative positions of the address fields.
-  DCHECK(value_off_addr > key_off_addr);
-  DCHECK((value_off_addr - key_off_addr) % 4 == 0);
-  DCHECK((value_off_addr - key_off_addr) < (256 * 4));
-  DCHECK(map_off_addr > key_off_addr);
-  DCHECK((map_off_addr - key_off_addr) % 4 == 0);
-  DCHECK((map_off_addr - key_off_addr) < (256 * 4));
-
-  Label miss;
-  Register base_addr = scratch;
-  scratch = no_reg;
-
-  // Multiply by 3 because there are 3 fields per entry (name, code, map).
-  __ add(offset_scratch, offset, Operand(offset, LSL, 1));
-
-  // Calculate the base address of the entry.
-  __ mov(base_addr, Operand(key_offset));
-  __ add(base_addr, base_addr, Operand(offset_scratch, LSL, kPointerSizeLog2));
-
-  // Check that the key in the entry matches the name.
-  __ ldr(ip, MemOperand(base_addr, 0));
-  __ cmp(name, ip);
-  __ b(ne, &miss);
-
-  // Check the map matches.
-  __ ldr(ip, MemOperand(base_addr, map_off_addr - key_off_addr));
-  __ ldr(scratch2, FieldMemOperand(receiver, HeapObject::kMapOffset));
-  __ cmp(ip, scratch2);
-  __ b(ne, &miss);
-
-  // Get the code entry from the cache.
-  Register code = scratch2;
-  scratch2 = no_reg;
-  __ ldr(code, MemOperand(base_addr, value_off_addr - key_off_addr));
-
-  // Check that the flags match what we're looking for.
-  Register flags_reg = base_addr;
-  base_addr = no_reg;
-  __ ldr(flags_reg, FieldMemOperand(code, Code::kFlagsOffset));
-  // It's a nice optimization if this constant is encodable in the bic insn.
-
-  uint32_t mask = Code::kFlagsNotUsedInLookup;
-  DCHECK(__ ImmediateFitsAddrMode1Instruction(mask));
-  __ bic(flags_reg, flags_reg, Operand(mask));
-  __ cmp(flags_reg, Operand(flags));
-  __ b(ne, &miss);
-
-#ifdef DEBUG
-    if (FLAG_test_secondary_stub_cache && table == StubCache::kPrimary) {
-      __ jmp(&miss);
-    } else if (FLAG_test_primary_stub_cache && table == StubCache::kSecondary) {
-      __ jmp(&miss);
-    }
-#endif
-
-  // Jump to the first instruction in the code stub.
-  __ add(pc, code, Operand(Code::kHeaderSize - kHeapObjectTag));
-
-  // Miss: fall through.
-  __ bind(&miss);
-}
-
-
-void PropertyHandlerCompiler::GenerateDictionaryNegativeLookup(
-    MacroAssembler* masm, Label* miss_label, Register receiver,
-    Handle<Name> name, Register scratch0, Register scratch1) {
-  DCHECK(name->IsUniqueName());
-  DCHECK(!receiver.is(scratch0));
-  Counters* counters = masm->isolate()->counters();
-  __ IncrementCounter(counters->negative_lookups(), 1, scratch0, scratch1);
-  __ IncrementCounter(counters->negative_lookups_miss(), 1, scratch0, scratch1);
-
-  Label done;
-
-  const int kInterceptorOrAccessCheckNeededMask =
-      (1 << Map::kHasNamedInterceptor) | (1 << Map::kIsAccessCheckNeeded);
-
-  // Bail out if the receiver has a named interceptor or requires access checks.
-  Register map = scratch1;
-  __ ldr(map, FieldMemOperand(receiver, HeapObject::kMapOffset));
-  __ ldrb(scratch0, FieldMemOperand(map, Map::kBitFieldOffset));
-  __ tst(scratch0, Operand(kInterceptorOrAccessCheckNeededMask));
-  __ b(ne, miss_label);
-
-  // Check that receiver is a JSObject.
-  __ ldrb(scratch0, FieldMemOperand(map, Map::kInstanceTypeOffset));
-  __ cmp(scratch0, Operand(FIRST_SPEC_OBJECT_TYPE));
-  __ b(lt, miss_label);
-
-  // Load properties array.
-  Register properties = scratch0;
-  __ ldr(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset));
-  // Check that the properties array is a dictionary.
-  __ ldr(map, FieldMemOperand(properties, HeapObject::kMapOffset));
-  Register tmp = properties;
-  __ LoadRoot(tmp, Heap::kHashTableMapRootIndex);
-  __ cmp(map, tmp);
-  __ b(ne, miss_label);
-
-  // Restore the temporarily used register.
-  __ ldr(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset));
-
-
-  NameDictionaryLookupStub::GenerateNegativeLookup(masm,
-                                                   miss_label,
-                                                   &done,
-                                                   receiver,
-                                                   properties,
-                                                   name,
-                                                   scratch1);
-  __ bind(&done);
-  __ DecrementCounter(counters->negative_lookups_miss(), 1, scratch0, scratch1);
-}
-
-
-void StubCache::GenerateProbe(MacroAssembler* masm,
-                              Code::Flags flags,
-                              Register receiver,
-                              Register name,
-                              Register scratch,
-                              Register extra,
-                              Register extra2,
-                              Register extra3) {
-  Isolate* isolate = masm->isolate();
-  Label miss;
-
-  // Make sure that code is valid. The multiplying code relies on the
-  // entry size being 12.
-  DCHECK(sizeof(Entry) == 12);
-
-  // Make sure the flags does not name a specific type.
-  DCHECK(Code::ExtractTypeFromFlags(flags) == 0);
-
-  // Make sure that there are no register conflicts.
-  DCHECK(!scratch.is(receiver));
-  DCHECK(!scratch.is(name));
-  DCHECK(!extra.is(receiver));
-  DCHECK(!extra.is(name));
-  DCHECK(!extra.is(scratch));
-  DCHECK(!extra2.is(receiver));
-  DCHECK(!extra2.is(name));
-  DCHECK(!extra2.is(scratch));
-  DCHECK(!extra2.is(extra));
-
-  // Check scratch, extra and extra2 registers are valid.
-  DCHECK(!scratch.is(no_reg));
-  DCHECK(!extra.is(no_reg));
-  DCHECK(!extra2.is(no_reg));
-  DCHECK(!extra3.is(no_reg));
-
-  Counters* counters = masm->isolate()->counters();
-  __ IncrementCounter(counters->megamorphic_stub_cache_probes(), 1,
-                      extra2, extra3);
-
-  // Check that the receiver isn't a smi.
-  __ JumpIfSmi(receiver, &miss);
-
-  // Get the map of the receiver and compute the hash.
-  __ ldr(scratch, FieldMemOperand(name, Name::kHashFieldOffset));
-  __ ldr(ip, FieldMemOperand(receiver, HeapObject::kMapOffset));
-  __ add(scratch, scratch, Operand(ip));
-  uint32_t mask = kPrimaryTableSize - 1;
-  // We shift out the last two bits because they are not part of the hash and
-  // they are always 01 for maps.
-  __ mov(scratch, Operand(scratch, LSR, kCacheIndexShift));
-  // Mask down the eor argument to the minimum to keep the immediate
-  // ARM-encodable.
-  __ eor(scratch, scratch, Operand((flags >> kCacheIndexShift) & mask));
-  // Prefer and_ to ubfx here because ubfx takes 2 cycles.
-  __ and_(scratch, scratch, Operand(mask));
-
-  // Probe the primary table.
-  ProbeTable(isolate,
-             masm,
-             flags,
-             kPrimary,
-             receiver,
-             name,
-             scratch,
-             extra,
-             extra2,
-             extra3);
-
-  // Primary miss: Compute hash for secondary probe.
-  __ sub(scratch, scratch, Operand(name, LSR, kCacheIndexShift));
-  uint32_t mask2 = kSecondaryTableSize - 1;
-  __ add(scratch, scratch, Operand((flags >> kCacheIndexShift) & mask2));
-  __ and_(scratch, scratch, Operand(mask2));
-
-  // Probe the secondary table.
-  ProbeTable(isolate,
-             masm,
-             flags,
-             kSecondary,
-             receiver,
-             name,
-             scratch,
-             extra,
-             extra2,
-             extra3);
-
-  // Cache miss: Fall-through and let caller handle the miss by
-  // entering the runtime system.
-  __ bind(&miss);
-  __ IncrementCounter(counters->megamorphic_stub_cache_misses(), 1,
-                      extra2, extra3);
-}
-
-
-void NamedLoadHandlerCompiler::GenerateDirectLoadGlobalFunctionPrototype(
-    MacroAssembler* masm, int index, Register prototype, Label* miss) {
-  Isolate* isolate = masm->isolate();
-  // Get the global function with the given index.
-  Handle<JSFunction> function(
-      JSFunction::cast(isolate->native_context()->get(index)));
-
-  // Check we're still in the same context.
-  Register scratch = prototype;
-  const int offset = Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX);
-  __ ldr(scratch, MemOperand(cp, offset));
-  __ ldr(scratch, FieldMemOperand(scratch, GlobalObject::kNativeContextOffset));
-  __ ldr(scratch, MemOperand(scratch, Context::SlotOffset(index)));
-  __ Move(ip, function);
-  __ cmp(ip, scratch);
-  __ b(ne, miss);
-
-  // Load its initial map. The global functions all have initial maps.
-  __ Move(prototype, Handle<Map>(function->initial_map()));
-  // Load the prototype from the initial map.
-  __ ldr(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset));
-}
-
-
-void NamedLoadHandlerCompiler::GenerateLoadFunctionPrototype(
-    MacroAssembler* masm, Register receiver, Register scratch1,
-    Register scratch2, Label* miss_label) {
-  __ TryGetFunctionPrototype(receiver, scratch1, scratch2, miss_label);
-  __ mov(r0, scratch1);
-  __ Ret();
-}
-
-
-// Generate code to check that a global property cell is empty. Create
-// the property cell at compilation time if no cell exists for the
-// property.
-void PropertyHandlerCompiler::GenerateCheckPropertyCell(
-    MacroAssembler* masm, Handle<JSGlobalObject> global, Handle<Name> name,
-    Register scratch, Label* miss) {
-  Handle<Cell> cell = JSGlobalObject::EnsurePropertyCell(global, name);
-  DCHECK(cell->value()->IsTheHole());
-  __ mov(scratch, Operand(cell));
-  __ ldr(scratch, FieldMemOperand(scratch, Cell::kValueOffset));
-  __ LoadRoot(ip, Heap::kTheHoleValueRootIndex);
-  __ cmp(scratch, ip);
-  __ b(ne, miss);
-}
-
-
-static void PushInterceptorArguments(MacroAssembler* masm, Register receiver,
-                                     Register holder, Register name,
-                                     Handle<JSObject> holder_obj) {
-  STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsNameIndex == 0);
-  STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsInfoIndex == 1);
-  STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsThisIndex == 2);
-  STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsHolderIndex == 3);
-  STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsLength == 4);
-  __ push(name);
-  Handle<InterceptorInfo> interceptor(holder_obj->GetNamedInterceptor());
-  DCHECK(!masm->isolate()->heap()->InNewSpace(*interceptor));
-  Register scratch = name;
-  __ mov(scratch, Operand(interceptor));
-  __ push(scratch);
-  __ push(receiver);
-  __ push(holder);
-}
-
-
-static void CompileCallLoadPropertyWithInterceptor(
-    MacroAssembler* masm, Register receiver, Register holder, Register name,
-    Handle<JSObject> holder_obj, IC::UtilityId id) {
-  PushInterceptorArguments(masm, receiver, holder, name, holder_obj);
-  __ CallExternalReference(ExternalReference(IC_Utility(id), masm->isolate()),
-                           NamedLoadHandlerCompiler::kInterceptorArgsLength);
-}
-
-
-// Generate call to api function.
-void PropertyHandlerCompiler::GenerateFastApiCall(
-    MacroAssembler* masm, const CallOptimization& optimization,
-    Handle<Map> receiver_map, Register receiver, Register scratch_in,
-    bool is_store, int argc, Register* values) {
-  DCHECK(!receiver.is(scratch_in));
-  __ push(receiver);
-  // Write the arguments to stack frame.
-  for (int i = 0; i < argc; i++) {
-    Register arg = values[argc - 1 - i];
-    DCHECK(!receiver.is(arg));
-    DCHECK(!scratch_in.is(arg));
-    __ push(arg);
-  }
-  DCHECK(optimization.is_simple_api_call());
-
-  // Abi for CallApiFunctionStub.
-  Register callee = r0;
-  Register call_data = r4;
-  Register holder = r2;
-  Register api_function_address = r1;
-
-  // Put holder in place.
-  CallOptimization::HolderLookup holder_lookup;
-  Handle<JSObject> api_holder =
-      optimization.LookupHolderOfExpectedType(receiver_map, &holder_lookup);
-  switch (holder_lookup) {
-    case CallOptimization::kHolderIsReceiver:
-      __ Move(holder, receiver);
-      break;
-    case CallOptimization::kHolderFound:
-      __ Move(holder, api_holder);
-      break;
-    case CallOptimization::kHolderNotFound:
-      UNREACHABLE();
-      break;
-  }
-
-  Isolate* isolate = masm->isolate();
-  Handle<JSFunction> function = optimization.constant_function();
-  Handle<CallHandlerInfo> api_call_info = optimization.api_call_info();
-  Handle<Object> call_data_obj(api_call_info->data(), isolate);
-
-  // Put callee in place.
-  __ Move(callee, function);
-
-  bool call_data_undefined = false;
-  // Put call_data in place.
-  if (isolate->heap()->InNewSpace(*call_data_obj)) {
-    __ Move(call_data, api_call_info);
-    __ ldr(call_data, FieldMemOperand(call_data, CallHandlerInfo::kDataOffset));
-  } else if (call_data_obj->IsUndefined()) {
-    call_data_undefined = true;
-    __ LoadRoot(call_data, Heap::kUndefinedValueRootIndex);
-  } else {
-    __ Move(call_data, call_data_obj);
-  }
-
-  // Put api_function_address in place.
-  Address function_address = v8::ToCData<Address>(api_call_info->callback());
-  ApiFunction fun(function_address);
-  ExternalReference::Type type = ExternalReference::DIRECT_API_CALL;
-  ExternalReference ref = ExternalReference(&fun, type, masm->isolate());
-  __ mov(api_function_address, Operand(ref));
-
-  // Jump to stub.
-  CallApiFunctionStub stub(isolate, is_store, call_data_undefined, argc);
-  __ TailCallStub(&stub);
-}
-
-
-void PropertyAccessCompiler::GenerateTailCall(MacroAssembler* masm,
-                                              Handle<Code> code) {
-  __ Jump(code, RelocInfo::CODE_TARGET);
-}
-
-
-#undef __
-#define __ ACCESS_MASM(masm())
-
-
-void NamedStoreHandlerCompiler::GenerateRestoreName(Label* label,
-                                                    Handle<Name> name) {
-  if (!label->is_unused()) {
-    __ bind(label);
-    __ mov(this->name(), Operand(name));
-  }
-}
-
-
-// Generate StoreTransition code, value is passed in r0 register.
-// When leaving generated code after success, the receiver_reg and name_reg
-// may be clobbered.  Upon branch to miss_label, the receiver and name
-// registers have their original values.
-void NamedStoreHandlerCompiler::GenerateStoreTransition(
-    Handle<Map> transition, Handle<Name> name, Register receiver_reg,
-    Register storage_reg, Register value_reg, Register scratch1,
-    Register scratch2, Register scratch3, Label* miss_label, Label* slow) {
-  // r0 : value
-  Label exit;
-
-  int descriptor = transition->LastAdded();
-  DescriptorArray* descriptors = transition->instance_descriptors();
-  PropertyDetails details = descriptors->GetDetails(descriptor);
-  Representation representation = details.representation();
-  DCHECK(!representation.IsNone());
-
-  if (details.type() == CONSTANT) {
-    Handle<Object> constant(descriptors->GetValue(descriptor), isolate());
-    __ Move(scratch1, constant);
-    __ cmp(value_reg, scratch1);
-    __ b(ne, miss_label);
-  } else if (representation.IsSmi()) {
-    __ JumpIfNotSmi(value_reg, miss_label);
-  } else if (representation.IsHeapObject()) {
-    __ JumpIfSmi(value_reg, miss_label);
-    HeapType* field_type = descriptors->GetFieldType(descriptor);
-    HeapType::Iterator<Map> it = field_type->Classes();
-    if (!it.Done()) {
-      __ ldr(scratch1, FieldMemOperand(value_reg, HeapObject::kMapOffset));
-      Label do_store;
-      while (true) {
-        __ CompareMap(scratch1, it.Current(), &do_store);
-        it.Advance();
-        if (it.Done()) {
-          __ b(ne, miss_label);
-          break;
-        }
-        __ b(eq, &do_store);
-      }
-      __ bind(&do_store);
-    }
-  } else if (representation.IsDouble()) {
-    Label do_store, heap_number;
-    __ LoadRoot(scratch3, Heap::kMutableHeapNumberMapRootIndex);
-    __ AllocateHeapNumber(storage_reg, scratch1, scratch2, scratch3, slow,
-                          TAG_RESULT, MUTABLE);
-
-    __ JumpIfNotSmi(value_reg, &heap_number);
-    __ SmiUntag(scratch1, value_reg);
-    __ vmov(s0, scratch1);
-    __ vcvt_f64_s32(d0, s0);
-    __ jmp(&do_store);
-
-    __ bind(&heap_number);
-    __ CheckMap(value_reg, scratch1, Heap::kHeapNumberMapRootIndex,
-                miss_label, DONT_DO_SMI_CHECK);
-    __ vldr(d0, FieldMemOperand(value_reg, HeapNumber::kValueOffset));
-
-    __ bind(&do_store);
-    __ vstr(d0, FieldMemOperand(storage_reg, HeapNumber::kValueOffset));
-  }
-
-  // Stub never generated for objects that require access checks.
-  DCHECK(!transition->is_access_check_needed());
-
-  // Perform map transition for the receiver if necessary.
-  if (details.type() == FIELD &&
-      Map::cast(transition->GetBackPointer())->unused_property_fields() == 0) {
-    // The properties must be extended before we can store the value.
-    // We jump to a runtime call that extends the properties array.
-    __ push(receiver_reg);
-    __ mov(r2, Operand(transition));
-    __ Push(r2, r0);
-    __ TailCallExternalReference(
-        ExternalReference(IC_Utility(IC::kSharedStoreIC_ExtendStorage),
-                          isolate()),
-        3, 1);
-    return;
-  }
-
-  // Update the map of the object.
-  __ mov(scratch1, Operand(transition));
-  __ str(scratch1, FieldMemOperand(receiver_reg, HeapObject::kMapOffset));
-
-  // Update the write barrier for the map field.
-  __ RecordWriteField(receiver_reg,
-                      HeapObject::kMapOffset,
-                      scratch1,
-                      scratch2,
-                      kLRHasNotBeenSaved,
-                      kDontSaveFPRegs,
-                      OMIT_REMEMBERED_SET,
-                      OMIT_SMI_CHECK);
-
-  if (details.type() == CONSTANT) {
-    DCHECK(value_reg.is(r0));
-    __ Ret();
-    return;
-  }
-
-  int index = transition->instance_descriptors()->GetFieldIndex(
-      transition->LastAdded());
-
-  // Adjust for the number of properties stored in the object. Even in the
-  // face of a transition we can use the old map here because the size of the
-  // object and the number of in-object properties is not going to change.
-  index -= transition->inobject_properties();
-
-  // TODO(verwaest): Share this code as a code stub.
-  SmiCheck smi_check = representation.IsTagged()
-      ? INLINE_SMI_CHECK : OMIT_SMI_CHECK;
-  if (index < 0) {
-    // Set the property straight into the object.
-    int offset = transition->instance_size() + (index * kPointerSize);
-    if (representation.IsDouble()) {
-      __ str(storage_reg, FieldMemOperand(receiver_reg, offset));
-    } else {
-      __ str(value_reg, FieldMemOperand(receiver_reg, offset));
-    }
-
-    if (!representation.IsSmi()) {
-      // Update the write barrier for the array address.
-      if (!representation.IsDouble()) {
-        __ mov(storage_reg, value_reg);
-      }
-      __ RecordWriteField(receiver_reg,
-                          offset,
-                          storage_reg,
-                          scratch1,
-                          kLRHasNotBeenSaved,
-                          kDontSaveFPRegs,
-                          EMIT_REMEMBERED_SET,
-                          smi_check);
-    }
-  } else {
-    // Write to the properties array.
-    int offset = index * kPointerSize + FixedArray::kHeaderSize;
-    // Get the properties array
-    __ ldr(scratch1,
-           FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset));
-    if (representation.IsDouble()) {
-      __ str(storage_reg, FieldMemOperand(scratch1, offset));
-    } else {
-      __ str(value_reg, FieldMemOperand(scratch1, offset));
-    }
-
-    if (!representation.IsSmi()) {
-      // Update the write barrier for the array address.
-      if (!representation.IsDouble()) {
-        __ mov(storage_reg, value_reg);
-      }
-      __ RecordWriteField(scratch1,
-                          offset,
-                          storage_reg,
-                          receiver_reg,
-                          kLRHasNotBeenSaved,
-                          kDontSaveFPRegs,
-                          EMIT_REMEMBERED_SET,
-                          smi_check);
-    }
-  }
-
-  // Return the value (register r0).
-  DCHECK(value_reg.is(r0));
-  __ bind(&exit);
-  __ Ret();
-}
-
-
-void NamedStoreHandlerCompiler::GenerateStoreField(LookupIterator* lookup,
-                                                   Register value_reg,
-                                                   Label* miss_label) {
-  DCHECK(lookup->representation().IsHeapObject());
-  __ JumpIfSmi(value_reg, miss_label);
-  HeapType::Iterator<Map> it = lookup->GetFieldType()->Classes();
-  __ ldr(scratch1(), FieldMemOperand(value_reg, HeapObject::kMapOffset));
-  Label do_store;
-  while (true) {
-    __ CompareMap(scratch1(), it.Current(), &do_store);
-    it.Advance();
-    if (it.Done()) {
-      __ b(ne, miss_label);
-      break;
-    }
-    __ b(eq, &do_store);
-  }
-  __ bind(&do_store);
-
-  StoreFieldStub stub(isolate(), lookup->GetFieldIndex(),
-                      lookup->representation());
-  GenerateTailCall(masm(), stub.GetCode());
-}
-
-
-Register PropertyHandlerCompiler::CheckPrototypes(
-    Register object_reg, Register holder_reg, Register scratch1,
-    Register scratch2, Handle<Name> name, Label* miss,
-    PrototypeCheckType check) {
-  Handle<Map> receiver_map(IC::TypeToMap(*type(), isolate()));
-
-  // Make sure there's no overlap between holder and object registers.
-  DCHECK(!scratch1.is(object_reg) && !scratch1.is(holder_reg));
-  DCHECK(!scratch2.is(object_reg) && !scratch2.is(holder_reg)
-         && !scratch2.is(scratch1));
-
-  // Keep track of the current object in register reg.
-  Register reg = object_reg;
-  int depth = 0;
-
-  Handle<JSObject> current = Handle<JSObject>::null();
-  if (type()->IsConstant()) {
-    current = Handle<JSObject>::cast(type()->AsConstant()->Value());
-  }
-  Handle<JSObject> prototype = Handle<JSObject>::null();
-  Handle<Map> current_map = receiver_map;
-  Handle<Map> holder_map(holder()->map());
-  // Traverse the prototype chain and check the maps in the prototype chain for
-  // fast and global objects or do negative lookup for normal objects.
-  while (!current_map.is_identical_to(holder_map)) {
-    ++depth;
-
-    // Only global objects and objects that do not require access
-    // checks are allowed in stubs.
-    DCHECK(current_map->IsJSGlobalProxyMap() ||
-           !current_map->is_access_check_needed());
-
-    prototype = handle(JSObject::cast(current_map->prototype()));
-    if (current_map->is_dictionary_map() &&
-        !current_map->IsJSGlobalObjectMap()) {
-      DCHECK(!current_map->IsJSGlobalProxyMap());  // Proxy maps are fast.
-      if (!name->IsUniqueName()) {
-        DCHECK(name->IsString());
-        name = factory()->InternalizeString(Handle<String>::cast(name));
-      }
-      DCHECK(current.is_null() ||
-             current->property_dictionary()->FindEntry(name) ==
-             NameDictionary::kNotFound);
-
-      GenerateDictionaryNegativeLookup(masm(), miss, reg, name,
-                                       scratch1, scratch2);
-
-      __ ldr(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset));
-      reg = holder_reg;  // From now on the object will be in holder_reg.
-      __ ldr(reg, FieldMemOperand(scratch1, Map::kPrototypeOffset));
-    } else {
-      Register map_reg = scratch1;
-      if (depth != 1 || check == CHECK_ALL_MAPS) {
-        // CheckMap implicitly loads the map of |reg| into |map_reg|.
-        __ CheckMap(reg, map_reg, current_map, miss, DONT_DO_SMI_CHECK);
-      } else {
-        __ ldr(map_reg, FieldMemOperand(reg, HeapObject::kMapOffset));
-      }
-
-      // Check access rights to the global object.  This has to happen after
-      // the map check so that we know that the object is actually a global
-      // object.
-      // This allows us to install generated handlers for accesses to the
-      // global proxy (as opposed to using slow ICs). See corresponding code
-      // in LookupForRead().
-      if (current_map->IsJSGlobalProxyMap()) {
-        __ CheckAccessGlobalProxy(reg, scratch2, miss);
-      } else if (current_map->IsJSGlobalObjectMap()) {
-        GenerateCheckPropertyCell(
-            masm(), Handle<JSGlobalObject>::cast(current), name,
-            scratch2, miss);
-      }
-
-      reg = holder_reg;  // From now on the object will be in holder_reg.
-
-      // Two possible reasons for loading the prototype from the map:
-      // (1) Can't store references to new space in code.
-      // (2) Handler is shared for all receivers with the same prototype
-      //     map (but not necessarily the same prototype instance).
-      bool load_prototype_from_map =
-          heap()->InNewSpace(*prototype) || depth == 1;
-      if (load_prototype_from_map) {
-        __ ldr(reg, FieldMemOperand(map_reg, Map::kPrototypeOffset));
-      } else {
-        __ mov(reg, Operand(prototype));
-      }
-    }
-
-    // Go to the next object in the prototype chain.
-    current = prototype;
-    current_map = handle(current->map());
-  }
-
-  // Log the check depth.
-  LOG(isolate(), IntEvent("check-maps-depth", depth + 1));
-
-  if (depth != 0 || check == CHECK_ALL_MAPS) {
-    // Check the holder map.
-    __ CheckMap(reg, scratch1, current_map, miss, DONT_DO_SMI_CHECK);
-  }
-
-  // Perform security check for access to the global object.
-  DCHECK(current_map->IsJSGlobalProxyMap() ||
-         !current_map->is_access_check_needed());
-  if (current_map->IsJSGlobalProxyMap()) {
-    __ CheckAccessGlobalProxy(reg, scratch1, miss);
-  }
-
-  // Return the register containing the holder.
-  return reg;
-}
-
-
-void NamedLoadHandlerCompiler::FrontendFooter(Handle<Name> name, Label* miss) {
-  if (!miss->is_unused()) {
-    Label success;
-    __ b(&success);
-    __ bind(miss);
-    TailCallBuiltin(masm(), MissBuiltin(kind()));
-    __ bind(&success);
-  }
-}
-
-
-void NamedStoreHandlerCompiler::FrontendFooter(Handle<Name> name, Label* miss) {
-  if (!miss->is_unused()) {
-    Label success;
-    __ b(&success);
-    GenerateRestoreName(miss, name);
-    TailCallBuiltin(masm(), MissBuiltin(kind()));
-    __ bind(&success);
-  }
-}
-
-
-void NamedLoadHandlerCompiler::GenerateLoadConstant(Handle<Object> value) {
-  // Return the constant value.
-  __ Move(r0, value);
-  __ Ret();
-}
-
-
-void NamedLoadHandlerCompiler::GenerateLoadCallback(
-    Register reg, Handle<ExecutableAccessorInfo> callback) {
-  // Build AccessorInfo::args_ list on the stack and push property name below
-  // the exit frame to make GC aware of them and store pointers to them.
-  STATIC_ASSERT(PropertyCallbackArguments::kHolderIndex == 0);
-  STATIC_ASSERT(PropertyCallbackArguments::kIsolateIndex == 1);
-  STATIC_ASSERT(PropertyCallbackArguments::kReturnValueDefaultValueIndex == 2);
-  STATIC_ASSERT(PropertyCallbackArguments::kReturnValueOffset == 3);
-  STATIC_ASSERT(PropertyCallbackArguments::kDataIndex == 4);
-  STATIC_ASSERT(PropertyCallbackArguments::kThisIndex == 5);
-  STATIC_ASSERT(PropertyCallbackArguments::kArgsLength == 6);
-  DCHECK(!scratch2().is(reg));
-  DCHECK(!scratch3().is(reg));
-  DCHECK(!scratch4().is(reg));
-  __ push(receiver());
-  if (heap()->InNewSpace(callback->data())) {
-    __ Move(scratch3(), callback);
-    __ ldr(scratch3(), FieldMemOperand(scratch3(),
-                                       ExecutableAccessorInfo::kDataOffset));
-  } else {
-    __ Move(scratch3(), Handle<Object>(callback->data(), isolate()));
-  }
-  __ push(scratch3());
-  __ LoadRoot(scratch3(), Heap::kUndefinedValueRootIndex);
-  __ mov(scratch4(), scratch3());
-  __ Push(scratch3(), scratch4());
-  __ mov(scratch4(),
-         Operand(ExternalReference::isolate_address(isolate())));
-  __ Push(scratch4(), reg);
-  __ mov(scratch2(), sp);  // scratch2 = PropertyAccessorInfo::args_
-  __ push(name());
-
-  // Abi for CallApiGetter
-  Register getter_address_reg = r2;
-
-  Address getter_address = v8::ToCData<Address>(callback->getter());
-  ApiFunction fun(getter_address);
-  ExternalReference::Type type = ExternalReference::DIRECT_GETTER_CALL;
-  ExternalReference ref = ExternalReference(&fun, type, isolate());
-  __ mov(getter_address_reg, Operand(ref));
-
-  CallApiGetterStub stub(isolate());
-  __ TailCallStub(&stub);
-}
-
-
-void NamedLoadHandlerCompiler::GenerateLoadInterceptorWithFollowup(
-    LookupIterator* it, Register holder_reg) {
-  DCHECK(holder()->HasNamedInterceptor());
-  DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined());
-
-  // Compile the interceptor call, followed by inline code to load the
-  // property from further up the prototype chain if the call fails.
-  // Check that the maps haven't changed.
-  DCHECK(holder_reg.is(receiver()) || holder_reg.is(scratch1()));
-
-  // Preserve the receiver register explicitly whenever it is different from the
-  // holder and it is needed should the interceptor return without any result.
-  // The ACCESSOR case needs the receiver to be passed into C++ code, the FIELD
-  // case might cause a miss during the prototype check.
-  bool must_perform_prototype_check =
-      !holder().is_identical_to(it->GetHolder<JSObject>());
-  bool must_preserve_receiver_reg =
-      !receiver().is(holder_reg) &&
-      (it->property_kind() == LookupIterator::ACCESSOR ||
-       must_perform_prototype_check);
-
-  // Save necessary data before invoking an interceptor.
-  // Requires a frame to make GC aware of pushed pointers.
-  {
-    FrameAndConstantPoolScope frame_scope(masm(), StackFrame::INTERNAL);
-    if (must_preserve_receiver_reg) {
-      __ Push(receiver(), holder_reg, this->name());
-    } else {
-      __ Push(holder_reg, this->name());
-    }
-    // Invoke an interceptor.  Note: map checks from receiver to
-    // interceptor's holder has been compiled before (see a caller
-    // of this method.)
-    CompileCallLoadPropertyWithInterceptor(
-        masm(), receiver(), holder_reg, this->name(), holder(),
-        IC::kLoadPropertyWithInterceptorOnly);
-
-    // Check if interceptor provided a value for property.  If it's
-    // the case, return immediately.
-    Label interceptor_failed;
-    __ LoadRoot(scratch1(), Heap::kNoInterceptorResultSentinelRootIndex);
-    __ cmp(r0, scratch1());
-    __ b(eq, &interceptor_failed);
-    frame_scope.GenerateLeaveFrame();
-    __ Ret();
-
-    __ bind(&interceptor_failed);
-    __ pop(this->name());
-    __ pop(holder_reg);
-    if (must_preserve_receiver_reg) {
-      __ pop(receiver());
-    }
-    // Leave the internal frame.
-  }
-
-  GenerateLoadPostInterceptor(it, holder_reg);
-}
-
-
-void NamedLoadHandlerCompiler::GenerateLoadInterceptor(Register holder_reg) {
-  // Call the runtime system to load the interceptor.
-  DCHECK(holder()->HasNamedInterceptor());
-  DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined());
-  PushInterceptorArguments(masm(), receiver(), holder_reg, this->name(),
-                           holder());
-
-  ExternalReference ref = ExternalReference(
-      IC_Utility(IC::kLoadPropertyWithInterceptor), isolate());
-  __ TailCallExternalReference(
-      ref, NamedLoadHandlerCompiler::kInterceptorArgsLength, 1);
-}
-
-
-Handle<Code> NamedStoreHandlerCompiler::CompileStoreCallback(
-    Handle<JSObject> object, Handle<Name> name,
-    Handle<ExecutableAccessorInfo> callback) {
-  Register holder_reg = Frontend(receiver(), name);
-
-  __ push(receiver());  // receiver
-  __ push(holder_reg);
-  __ mov(ip, Operand(callback));  // callback info
-  __ push(ip);
-  __ mov(ip, Operand(name));
-  __ Push(ip, value());
-
-  // Do tail-call to the runtime system.
-  ExternalReference store_callback_property =
-      ExternalReference(IC_Utility(IC::kStoreCallbackProperty), isolate());
-  __ TailCallExternalReference(store_callback_property, 5, 1);
-
-  // Return the generated code.
-  return GetCode(kind(), Code::FAST, name);
-}
-
-
-#undef __
-#define __ ACCESS_MASM(masm)
-
-
-void NamedStoreHandlerCompiler::GenerateStoreViaSetter(
-    MacroAssembler* masm, Handle<HeapType> type, Register receiver,
-    Handle<JSFunction> setter) {
-  // ----------- S t a t e -------------
-  //  -- lr    : return address
-  // -----------------------------------
-  {
-    FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
-
-    // Save value register, so we can restore it later.
-    __ push(value());
-
-    if (!setter.is_null()) {
-      // Call the JavaScript setter with receiver and value on the stack.
-      if (IC::TypeToMap(*type, masm->isolate())->IsJSGlobalObjectMap()) {
-        // Swap in the global receiver.
-        __ ldr(receiver,
-               FieldMemOperand(receiver, JSGlobalObject::kGlobalProxyOffset));
-      }
-      __ Push(receiver, value());
-      ParameterCount actual(1);
-      ParameterCount expected(setter);
-      __ InvokeFunction(setter, expected, actual,
-                        CALL_FUNCTION, NullCallWrapper());
-    } else {
-      // If we generate a global code snippet for deoptimization only, remember
-      // the place to continue after deoptimization.
-      masm->isolate()->heap()->SetSetterStubDeoptPCOffset(masm->pc_offset());
-    }
-
-    // We have to return the passed value, not the return value of the setter.
-    __ pop(r0);
-
-    // Restore context register.
-    __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
-  }
-  __ Ret();
-}
-
-
-#undef __
-#define __ ACCESS_MASM(masm())
-
-
-Handle<Code> NamedStoreHandlerCompiler::CompileStoreInterceptor(
-    Handle<Name> name) {
-  __ Push(receiver(), this->name(), value());
-
-  // Do tail-call to the runtime system.
-  ExternalReference store_ic_property = ExternalReference(
-      IC_Utility(IC::kStorePropertyWithInterceptor), isolate());
-  __ TailCallExternalReference(store_ic_property, 3, 1);
-
-  // Return the generated code.
-  return GetCode(kind(), Code::FAST, name);
-}
-
-
-Register* PropertyAccessCompiler::load_calling_convention() {
-  // receiver, name, scratch1, scratch2, scratch3, scratch4.
-  Register receiver = LoadIC::ReceiverRegister();
-  Register name = LoadIC::NameRegister();
-  static Register registers[] = { receiver, name, r3, r0, r4, r5 };
-  return registers;
-}
-
-
-Register* PropertyAccessCompiler::store_calling_convention() {
-  // receiver, name, scratch1, scratch2, scratch3.
-  Register receiver = StoreIC::ReceiverRegister();
-  Register name = StoreIC::NameRegister();
-  DCHECK(r3.is(KeyedStoreIC::MapRegister()));
-  static Register registers[] = { receiver, name, r3, r4, r5 };
-  return registers;
-}
-
-
-Register NamedStoreHandlerCompiler::value() { return StoreIC::ValueRegister(); }
-
-
-#undef __
-#define __ ACCESS_MASM(masm)
-
-
-void NamedLoadHandlerCompiler::GenerateLoadViaGetter(
-    MacroAssembler* masm, Handle<HeapType> type, Register receiver,
-    Handle<JSFunction> getter) {
-  // ----------- S t a t e -------------
-  //  -- r0    : receiver
-  //  -- r2    : name
-  //  -- lr    : return address
-  // -----------------------------------
-  {
-    FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
-
-    if (!getter.is_null()) {
-      // Call the JavaScript getter with the receiver on the stack.
-      if (IC::TypeToMap(*type, masm->isolate())->IsJSGlobalObjectMap()) {
-        // Swap in the global receiver.
-        __ ldr(receiver,
-               FieldMemOperand(receiver, JSGlobalObject::kGlobalProxyOffset));
-      }
-      __ push(receiver);
-      ParameterCount actual(0);
-      ParameterCount expected(getter);
-      __ InvokeFunction(getter, expected, actual,
-                        CALL_FUNCTION, NullCallWrapper());
-    } else {
-      // If we generate a global code snippet for deoptimization only, remember
-      // the place to continue after deoptimization.
-      masm->isolate()->heap()->SetGetterStubDeoptPCOffset(masm->pc_offset());
-    }
-
-    // Restore context register.
-    __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
-  }
-  __ Ret();
-}
-
-
-#undef __
-#define __ ACCESS_MASM(masm())
-
-
-Handle<Code> NamedLoadHandlerCompiler::CompileLoadGlobal(
-    Handle<PropertyCell> cell, Handle<Name> name, bool is_configurable) {
-  Label miss;
-  FrontendHeader(receiver(), name, &miss);
-
-  // Get the value from the cell.
-  Register result = StoreIC::ValueRegister();
-  __ mov(result, Operand(cell));
-  __ ldr(result, FieldMemOperand(result, Cell::kValueOffset));
-
-  // Check for deleted property if property can actually be deleted.
-  if (is_configurable) {
-    __ LoadRoot(ip, Heap::kTheHoleValueRootIndex);
-    __ cmp(result, ip);
-    __ b(eq, &miss);
-  }
-
-  Counters* counters = isolate()->counters();
-  __ IncrementCounter(counters->named_load_global_stub(), 1, r1, r3);
-  __ Ret();
-
-  FrontendFooter(name, &miss);
-
-  // Return the generated code.
-  return GetCode(kind(), Code::NORMAL, name);
-}
-
-
-Handle<Code> PropertyICCompiler::CompilePolymorphic(TypeHandleList* types,
-                                                    CodeHandleList* handlers,
-                                                    Handle<Name> name,
-                                                    Code::StubType type,
-                                                    IcCheckType check) {
-  Label miss;
-
-  if (check == PROPERTY &&
-      (kind() == Code::KEYED_LOAD_IC || kind() == Code::KEYED_STORE_IC)) {
-    // In case we are compiling an IC for dictionary loads and stores, just
-    // check whether the name is unique.
-    if (name.is_identical_to(isolate()->factory()->normal_ic_symbol())) {
-      __ JumpIfNotUniqueName(this->name(), &miss);
-    } else {
-      __ cmp(this->name(), Operand(name));
-      __ b(ne, &miss);
-    }
-  }
-
-  Label number_case;
-  Label* smi_target = IncludesNumberType(types) ? &number_case : &miss;
-  __ JumpIfSmi(receiver(), smi_target);
-
-  // Polymorphic keyed stores may use the map register
-  Register map_reg = scratch1();
-  DCHECK(kind() != Code::KEYED_STORE_IC ||
-         map_reg.is(KeyedStoreIC::MapRegister()));
-
-  int receiver_count = types->length();
-  int number_of_handled_maps = 0;
-  __ ldr(map_reg, FieldMemOperand(receiver(), HeapObject::kMapOffset));
-  for (int current = 0; current < receiver_count; ++current) {
-    Handle<HeapType> type = types->at(current);
-    Handle<Map> map = IC::TypeToMap(*type, isolate());
-    if (!map->is_deprecated()) {
-      number_of_handled_maps++;
-      __ mov(ip, Operand(map));
-      __ cmp(map_reg, ip);
-      if (type->Is(HeapType::Number())) {
-        DCHECK(!number_case.is_unused());
-        __ bind(&number_case);
-      }
-      __ Jump(handlers->at(current), RelocInfo::CODE_TARGET, eq);
-    }
-  }
-  DCHECK(number_of_handled_maps != 0);
-
-  __ bind(&miss);
-  TailCallBuiltin(masm(), MissBuiltin(kind()));
-
-  // Return the generated code.
-  InlineCacheState state =
-      number_of_handled_maps > 1 ? POLYMORPHIC : MONOMORPHIC;
-  return GetCode(kind(), type, name, state);
-}
-
-
-Handle<Code> PropertyICCompiler::CompileKeyedStorePolymorphic(
-    MapHandleList* receiver_maps, CodeHandleList* handler_stubs,
-    MapHandleList* transitioned_maps) {
-  Label miss;
-  __ JumpIfSmi(receiver(), &miss);
-
-  int receiver_count = receiver_maps->length();
-  __ ldr(scratch1(), FieldMemOperand(receiver(), HeapObject::kMapOffset));
-  for (int i = 0; i < receiver_count; ++i) {
-    __ mov(ip, Operand(receiver_maps->at(i)));
-    __ cmp(scratch1(), ip);
-    if (transitioned_maps->at(i).is_null()) {
-      __ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET, eq);
-    } else {
-      Label next_map;
-      __ b(ne, &next_map);
-      __ mov(transition_map(), Operand(transitioned_maps->at(i)));
-      __ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET, al);
-      __ bind(&next_map);
-    }
-  }
-
-  __ bind(&miss);
-  TailCallBuiltin(masm(), MissBuiltin(kind()));
-
-  // Return the generated code.
-  return GetCode(kind(), Code::NORMAL, factory()->empty_string(), POLYMORPHIC);
-}
-
-
-#undef __
-#define __ ACCESS_MASM(masm)
-
-
-void ElementHandlerCompiler::GenerateLoadDictionaryElement(
-    MacroAssembler* masm) {
-  // The return address is in lr.
-  Label slow, miss;
-
-  Register key = LoadIC::NameRegister();
-  Register receiver = LoadIC::ReceiverRegister();
-  DCHECK(receiver.is(r1));
-  DCHECK(key.is(r2));
-
-  __ UntagAndJumpIfNotSmi(r6, key, &miss);
-  __ ldr(r4, FieldMemOperand(receiver, JSObject::kElementsOffset));
-  __ LoadFromNumberDictionary(&slow, r4, key, r0, r6, r3, r5);
-  __ Ret();
-
-  __ bind(&slow);
-  __ IncrementCounter(
-      masm->isolate()->counters()->keyed_load_external_array_slow(),
-      1, r2, r3);
-
-  TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Slow);
-
-  // Miss case, call the runtime.
-  __ bind(&miss);
-
-  TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss);
-}
-
-
-#undef __
-
-} }  // namespace v8::internal
-
-#endif  // V8_TARGET_ARCH_ARM