void NamedLoadHandlerCompiler::GenerateLoadViaGetter(
- MacroAssembler* masm, Handle<HeapType> type, Register receiver,
- Handle<JSFunction> getter) {
+ MacroAssembler* masm, Handle<Map> map, Register receiver, Register holder,
+ int accessor_index, int expected_arguments, Register scratch) {
// ----------- S t a t e -------------
// -- r0 : receiver
// -- r2 : name
{
FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
- if (!getter.is_null()) {
+ if (accessor_index >= 0) {
+ DCHECK(!holder.is(scratch));
+ DCHECK(!receiver.is(scratch));
// Call the JavaScript getter with the receiver on the stack.
- if (IC::TypeToMap(*type, masm->isolate())->IsJSGlobalObjectMap()) {
+ if (map->IsJSGlobalObjectMap()) {
// Swap in the global receiver.
- __ ldr(receiver,
+ __ ldr(scratch,
FieldMemOperand(receiver, JSGlobalObject::kGlobalProxyOffset));
+ receiver = scratch;
}
__ push(receiver);
ParameterCount actual(0);
- ParameterCount expected(getter);
- __ InvokeFunction(getter, expected, actual, CALL_FUNCTION,
- NullCallWrapper());
+ ParameterCount expected(expected_arguments);
+ __ LoadAccessor(r1, holder, accessor_index, ACCESSOR_GETTER);
+ __ InvokeFunction(r1, expected, actual, CALL_FUNCTION, NullCallWrapper());
} else {
// If we generate a global code snippet for deoptimization only, remember
// the place to continue after deoptimization.
void NamedStoreHandlerCompiler::GenerateStoreViaSetter(
- MacroAssembler* masm, Handle<HeapType> type, Register receiver,
- Handle<JSFunction> setter) {
+ MacroAssembler* masm, Handle<Map> map, Register receiver, Register holder,
+ int accessor_index, int expected_arguments, Register scratch) {
// ----------- S t a t e -------------
// -- lr : return address
// -----------------------------------
// Save value register, so we can restore it later.
__ push(value());
- if (!setter.is_null()) {
+ if (accessor_index >= 0) {
+ DCHECK(!holder.is(scratch));
+ DCHECK(!receiver.is(scratch));
+ DCHECK(!value().is(scratch));
// Call the JavaScript setter with receiver and value on the stack.
- if (IC::TypeToMap(*type, masm->isolate())->IsJSGlobalObjectMap()) {
+ if (map->IsJSGlobalObjectMap()) {
// Swap in the global receiver.
- __ ldr(receiver,
+ __ ldr(scratch,
FieldMemOperand(receiver, JSGlobalObject::kGlobalProxyOffset));
+ receiver = scratch;
}
__ Push(receiver, value());
ParameterCount actual(1);
- ParameterCount expected(setter);
- __ InvokeFunction(setter, expected, actual, CALL_FUNCTION,
- NullCallWrapper());
+ ParameterCount expected(expected_arguments);
+ __ LoadAccessor(r1, holder, accessor_index, ACCESSOR_SETTER);
+ __ InvokeFunction(r1, expected, actual, CALL_FUNCTION, NullCallWrapper());
} else {
// If we generate a global code snippet for deoptimization only, remember
// the place to continue after deoptimization.
void PropertyHandlerCompiler::GenerateCheckPropertyCell(
MacroAssembler* masm, Handle<JSGlobalObject> global, Handle<Name> name,
Register scratch, Label* miss) {
- Handle<Cell> cell = JSGlobalObject::EnsurePropertyCell(global, name);
+ Handle<PropertyCell> cell = JSGlobalObject::EnsurePropertyCell(global, name);
DCHECK(cell->value()->IsTheHole());
- __ mov(scratch, Operand(cell));
- __ ldr(scratch, FieldMemOperand(scratch, Cell::kValueOffset));
+ Handle<WeakCell> weak_cell = masm->isolate()->factory()->NewWeakCell(cell);
+ __ LoadWeakValue(scratch, weak_cell, miss);
+ __ ldr(scratch, FieldMemOperand(scratch, PropertyCell::kValueOffset));
__ LoadRoot(ip, Heap::kTheHoleValueRootIndex);
__ cmp(scratch, ip);
__ b(ne, miss);
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);
+ STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsThisIndex == 1);
+ STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsHolderIndex == 2);
+ STATIC_ASSERT(NamedLoadHandlerCompiler::kInterceptorArgsLength == 3);
__ 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);
}
// Generate call to api function.
-void PropertyHandlerCompiler::GenerateFastApiCall(
+void PropertyHandlerCompiler::GenerateApiAccessorCall(
MacroAssembler* masm, const CallOptimization& optimization,
Handle<Map> receiver_map, Register receiver, Register scratch_in,
- bool is_store, int argc, Register* values) {
+ bool is_store, Register store_parameter, Register accessor_holder,
+ int accessor_index) {
+ DCHECK(!accessor_holder.is(scratch_in));
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);
+ if (is_store) {
+ DCHECK(!receiver.is(store_parameter));
+ DCHECK(!scratch_in.is(store_parameter));
+ __ push(store_parameter);
}
DCHECK(optimization.is_simple_api_call());
// Abi for CallApiFunctionStub.
Register callee = r0;
- Register call_data = r4;
+ Register data = r4;
Register holder = r2;
Register api_function_address = r1;
+ // Put callee in place.
+ __ LoadAccessor(callee, accessor_holder, accessor_index,
+ is_store ? ACCESSOR_SETTER : ACCESSOR_GETTER);
+
// Put holder in place.
CallOptimization::HolderLookup holder_lookup;
- Handle<JSObject> api_holder =
- optimization.LookupHolderOfExpectedType(receiver_map, &holder_lookup);
+ int holder_depth = 0;
+ optimization.LookupHolderOfExpectedType(receiver_map, &holder_lookup,
+ &holder_depth);
switch (holder_lookup) {
case CallOptimization::kHolderIsReceiver:
__ Move(holder, receiver);
break;
case CallOptimization::kHolderFound:
- __ Move(holder, api_holder);
+ __ ldr(holder, FieldMemOperand(receiver, HeapObject::kMapOffset));
+ __ ldr(holder, FieldMemOperand(holder, Map::kPrototypeOffset));
+ for (int i = 1; i < holder_depth; i++) {
+ __ ldr(holder, FieldMemOperand(holder, HeapObject::kMapOffset));
+ __ ldr(holder, FieldMemOperand(holder, Map::kPrototypeOffset));
+ }
break;
case CallOptimization::kHolderNotFound:
UNREACHABLE();
}
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()) {
+ // Put call data in place.
+ if (api_call_info->data()->IsUndefined()) {
call_data_undefined = true;
- __ LoadRoot(call_data, Heap::kUndefinedValueRootIndex);
+ __ LoadRoot(data, Heap::kUndefinedValueRootIndex);
} else {
- __ Move(call_data, call_data_obj);
+ __ ldr(data,
+ FieldMemOperand(callee, JSFunction::kSharedFunctionInfoOffset));
+ __ ldr(data,
+ FieldMemOperand(data, SharedFunctionInfo::kFunctionDataOffset));
+ __ ldr(data, FieldMemOperand(data, FunctionTemplateInfo::kCallCodeOffset));
+ __ ldr(data, FieldMemOperand(data, CallHandlerInfo::kDataOffset));
}
// Put api_function_address in place.
__ mov(api_function_address, Operand(ref));
// Jump to stub.
- CallApiFunctionStub stub(isolate, is_store, call_data_undefined, argc);
+ CallApiAccessorStub stub(isolate, is_store, call_data_undefined);
__ TailCallStub(&stub);
}
void NamedStoreHandlerCompiler::GenerateFieldTypeChecks(HeapType* field_type,
Register value_reg,
Label* miss_label) {
+ Register map_reg = scratch1();
+ Register scratch = scratch2();
+ DCHECK(!value_reg.is(map_reg));
+ DCHECK(!value_reg.is(scratch));
__ JumpIfSmi(value_reg, miss_label);
HeapType::Iterator<Map> it = field_type->Classes();
if (!it.Done()) {
- __ ldr(scratch1(), FieldMemOperand(value_reg, HeapObject::kMapOffset));
+ __ ldr(map_reg, FieldMemOperand(value_reg, HeapObject::kMapOffset));
Label do_store;
while (true) {
- __ CompareMap(scratch1(), it.Current(), &do_store);
+ __ CmpWeakValue(map_reg, Map::WeakCellForMap(it.Current()), scratch);
it.Advance();
if (it.Done()) {
__ b(ne, miss_label);
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()));
+ Handle<Map> receiver_map = map();
// Make sure there's no overlap between holder and object registers.
DCHECK(!scratch1.is(object_reg) && !scratch1.is(holder_reg));
int depth = 0;
Handle<JSObject> current = Handle<JSObject>::null();
- if (type()->IsConstant()) {
- current = Handle<JSObject>::cast(type()->AsConstant()->Value());
+ if (receiver_map->IsJSGlobalObjectMap()) {
+ current = isolate()->global_object();
+ }
+
+ // 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 (receiver_map->IsJSGlobalProxyMap()) {
+ __ CheckAccessGlobalProxy(reg, scratch2, miss);
}
+
Handle<JSObject> prototype = Handle<JSObject>::null();
Handle<Map> current_map = receiver_map;
Handle<Map> holder_map(holder()->map());
} else {
Register map_reg = scratch1;
__ ldr(map_reg, FieldMemOperand(reg, HeapObject::kMapOffset));
- if (depth != 1 || check == CHECK_ALL_MAPS) {
- Handle<WeakCell> cell = Map::WeakCellForMap(current_map);
- __ CmpWeakValue(map_reg, cell, scratch2);
- __ b(ne, miss);
- }
- // 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()) {
+ if (current_map->IsJSGlobalObjectMap()) {
GenerateCheckPropertyCell(masm(), Handle<JSGlobalObject>::cast(current),
name, scratch2, miss);
+ } else if (depth != 1 || check == CHECK_ALL_MAPS) {
+ Handle<WeakCell> cell = Map::WeakCellForMap(current_map);
+ __ CmpWeakValue(map_reg, cell, scratch2);
+ __ b(ne, miss);
}
reg = holder_reg; // From now on the object will be in holder_reg.
current_map = handle(current->map());
}
+ DCHECK(!current_map->IsJSGlobalProxyMap());
+
// Log the check depth.
LOG(isolate(), IntEvent("check-maps-depth", depth + 1));
__ b(ne, miss);
}
- // 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;
}
DCHECK(!scratch3().is(reg));
DCHECK(!scratch4().is(reg));
__ push(receiver());
- if (heap()->InNewSpace(callback->data())) {
- __ Move(scratch3(), callback);
- __ ldr(scratch3(),
- FieldMemOperand(scratch3(), ExecutableAccessorInfo::kDataOffset));
+ // Push data from ExecutableAccessorInfo.
+ Handle<Object> data(callback->data(), isolate());
+ if (data->IsUndefined() || data->IsSmi()) {
+ __ Move(scratch3(), data);
} else {
- __ Move(scratch3(), Handle<Object>(callback->data(), isolate()));
+ Handle<WeakCell> cell =
+ isolate()->factory()->NewWeakCell(Handle<HeapObject>::cast(data));
+ // The callback is alive if this instruction is executed,
+ // so the weak cell is not cleared and points to data.
+ __ GetWeakValue(scratch3(), cell);
}
__ push(scratch3());
__ LoadRoot(scratch3(), Heap::kUndefinedValueRootIndex);
__ push(receiver()); // receiver
__ push(holder_reg);
- __ mov(ip, Operand(callback)); // callback info
+
+ // If the callback cannot leak, then push the callback directly,
+ // otherwise wrap it in a weak cell.
+ if (callback->data()->IsUndefined() || callback->data()->IsSmi()) {
+ __ mov(ip, Operand(callback));
+ } else {
+ Handle<WeakCell> cell = isolate()->factory()->NewWeakCell(callback);
+ __ mov(ip, Operand(cell));
+ }
__ push(ip);
__ mov(ip, Operand(name));
__ Push(ip, value());
Register result = StoreDescriptor::ValueRegister();
Handle<WeakCell> weak_cell = factory()->NewWeakCell(cell);
__ LoadWeakValue(result, weak_cell, &miss);
- __ ldr(result, FieldMemOperand(result, Cell::kValueOffset));
+ __ ldr(result, FieldMemOperand(result, PropertyCell::kValueOffset));
// Check for deleted property if property can actually be deleted.
if (is_configurable) {
projects / platform / upstream / nodejs.git / blobdiff