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// 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/interface-descriptors.h"
namespace v8 {
namespace internal {
namespace {
// Constructors for common combined semantic and representation types.
Type* SmiType(Zone* zone) {
return Type::Intersect(Type::SignedSmall(), Type::TaggedSigned(), zone);
}
Type* UntaggedIntegral32(Zone* zone) {
return Type::Intersect(Type::Signed32(), Type::UntaggedIntegral32(), zone);
}
Type* AnyTagged(Zone* zone) {
return Type::Intersect(
Type::Any(),
Type::Union(Type::TaggedPointer(), Type::TaggedSigned(), zone), zone);
}
Type* ExternalPointer(Zone* zone) {
return Type::Intersect(Type::Internal(), Type::UntaggedPointer(), zone);
}
} // namespace
FunctionType* CallInterfaceDescriptor::BuildDefaultFunctionType(
Isolate* isolate, int parameter_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), parameter_count, zone)
->AsFunction();
while (parameter_count-- != 0) {
function->InitParameter(parameter_count, AnyTagged(zone));
}
return function;
}
void CallInterfaceDescriptorData::InitializePlatformSpecific(
int register_parameter_count, Register* registers,
PlatformInterfaceDescriptor* platform_descriptor) {
platform_specific_descriptor_ = platform_descriptor;
register_param_count_ = register_parameter_count;
// InterfaceDescriptor owns a copy of the registers array.
register_params_.Reset(NewArray<Register>(register_parameter_count));
for (int i = 0; i < register_parameter_count; i++) {
register_params_[i] = registers[i];
}
}
const char* CallInterfaceDescriptor::DebugName(Isolate* isolate) const {
CallInterfaceDescriptorData* start = isolate->call_descriptor_data(0);
size_t index = data_ - start;
DCHECK(index < CallDescriptors::NUMBER_OF_DESCRIPTORS);
CallDescriptors::Key key = static_cast<CallDescriptors::Key>(index);
switch (key) {
#define DEF_CASE(NAME) \
case CallDescriptors::NAME: \
return #NAME " Descriptor";
INTERFACE_DESCRIPTOR_LIST(DEF_CASE)
#undef DEF_CASE
case CallDescriptors::NUMBER_OF_DESCRIPTORS:
break;
}
return "";
}
void AllocateMutableHeapNumberDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
data->InitializePlatformSpecific(0, nullptr, nullptr);
}
void VoidDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
data->InitializePlatformSpecific(0, nullptr);
}
FunctionType* LoadDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 3, zone)->AsFunction();
function->InitParameter(0, AnyTagged(zone));
function->InitParameter(1, AnyTagged(zone));
function->InitParameter(2, SmiType(zone));
return function;
}
void LoadDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {ReceiverRegister(), NameRegister(), SlotRegister()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void StoreDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {ReceiverRegister(), NameRegister(), ValueRegister()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void StoreTransitionDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {ReceiverRegister(), NameRegister(), ValueRegister(),
MapRegister()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void VectorStoreTransitionDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
if (SlotRegister().is(no_reg)) {
Register registers[] = {ReceiverRegister(), NameRegister(), ValueRegister(),
MapRegister(), VectorRegister()};
data->InitializePlatformSpecific(arraysize(registers), registers);
} else {
Register registers[] = {ReceiverRegister(), NameRegister(),
ValueRegister(), MapRegister(),
SlotRegister(), VectorRegister()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
}
FunctionType*
StoreTransitionDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 4, zone)->AsFunction();
function->InitParameter(0, AnyTagged(zone)); // Receiver
function->InitParameter(1, AnyTagged(zone)); // Name
function->InitParameter(2, AnyTagged(zone)); // Value
function->InitParameter(3, AnyTagged(zone)); // Map
return function;
}
FunctionType*
LoadGlobalViaContextDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 1, zone)->AsFunction();
function->InitParameter(0, UntaggedIntegral32(zone));
return function;
}
void LoadGlobalViaContextDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {SlotRegister()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
FunctionType*
StoreGlobalViaContextDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 2, zone)->AsFunction();
function->InitParameter(0, UntaggedIntegral32(zone));
function->InitParameter(1, AnyTagged(zone));
return function;
}
void StoreGlobalViaContextDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {SlotRegister(), ValueRegister()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void InstanceOfDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {LeftRegister(), RightRegister()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void StringCompareDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {LeftRegister(), RightRegister()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void TypeConversionDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {ArgumentRegister()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void MathPowTaggedDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {exponent()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void MathPowIntegerDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {exponent()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
FunctionType*
LoadWithVectorDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 4, zone)->AsFunction();
function->InitParameter(0, AnyTagged(zone));
function->InitParameter(1, AnyTagged(zone));
function->InitParameter(2, SmiType(zone));
function->InitParameter(3, AnyTagged(zone));
return function;
}
void LoadWithVectorDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {ReceiverRegister(), NameRegister(), SlotRegister(),
VectorRegister()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
FunctionType*
VectorStoreTransitionDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
bool has_slot = !VectorStoreTransitionDescriptor::SlotRegister().is(no_reg);
int arg_count = has_slot ? 6 : 5;
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), arg_count, zone)
->AsFunction();
int index = 0;
function->InitParameter(index++, AnyTagged(zone)); // receiver
function->InitParameter(index++, AnyTagged(zone)); // name
function->InitParameter(index++, AnyTagged(zone)); // value
function->InitParameter(index++, AnyTagged(zone)); // map
if (has_slot) {
function->InitParameter(index++, SmiType(zone)); // slot
}
function->InitParameter(index++, AnyTagged(zone)); // vector
return function;
}
FunctionType* VectorStoreICDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 5, zone)->AsFunction();
function->InitParameter(0, AnyTagged(zone));
function->InitParameter(1, AnyTagged(zone));
function->InitParameter(2, AnyTagged(zone));
function->InitParameter(3, SmiType(zone));
function->InitParameter(4, AnyTagged(zone));
return function;
}
void VectorStoreICDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {ReceiverRegister(), NameRegister(), ValueRegister(),
SlotRegister(), VectorRegister()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
FunctionType*
VectorStoreICTrampolineDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 4, zone)->AsFunction();
function->InitParameter(0, AnyTagged(zone));
function->InitParameter(1, AnyTagged(zone));
function->InitParameter(2, AnyTagged(zone));
function->InitParameter(3, SmiType(zone));
return function;
}
void VectorStoreICTrampolineDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {ReceiverRegister(), NameRegister(), ValueRegister(),
SlotRegister()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
FunctionType* ApiGetterDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 1, zone)->AsFunction();
function->InitParameter(0, ExternalPointer(zone));
return function;
}
void ApiGetterDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {function_address()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void ContextOnlyDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
data->InitializePlatformSpecific(0, nullptr);
}
void GrowArrayElementsDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {ObjectRegister(), KeyRegister()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
FunctionType* FastArrayPushDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), AnyTagged(zone), 1, zone)->AsFunction();
function->InitParameter(0, UntaggedIntegral32(zone)); // actual #arguments
return function;
}
FunctionType*
FastCloneRegExpDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 4, zone)->AsFunction();
function->InitParameter(0, AnyTagged(zone)); // closure
function->InitParameter(1, SmiType(zone)); // literal_index
function->InitParameter(2, AnyTagged(zone)); // pattern
function->InitParameter(3, AnyTagged(zone)); // flags
return function;
}
FunctionType*
FastCloneShallowArrayDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 3, zone)->AsFunction();
function->InitParameter(0, AnyTagged(zone));
function->InitParameter(1, SmiType(zone));
function->InitParameter(2, AnyTagged(zone));
return function;
}
FunctionType*
CreateAllocationSiteDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 2, zone)->AsFunction();
function->InitParameter(0, AnyTagged(zone));
function->InitParameter(1, SmiType(zone));
return function;
}
FunctionType*
CreateWeakCellDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 3, zone)->AsFunction();
function->InitParameter(0, AnyTagged(zone));
function->InitParameter(1, SmiType(zone));
function->InitParameter(2, AnyTagged(zone));
return function;
}
FunctionType*
CallTrampolineDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 2, zone)->AsFunction();
function->InitParameter(0, AnyTagged(zone)); // target
function->InitParameter(1, UntaggedIntegral32(zone)); // actual #arguments
return function;
}
FunctionType* ConstructStubDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 4, zone)->AsFunction();
function->InitParameter(0, AnyTagged(zone)); // target
function->InitParameter(1, AnyTagged(zone)); // new.target
function->InitParameter(2, UntaggedIntegral32(zone)); // actual #arguments
function->InitParameter(3, AnyTagged(zone)); // opt. allocation site
return function;
}
FunctionType*
ConstructTrampolineDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 3, zone)->AsFunction();
function->InitParameter(0, AnyTagged(zone)); // target
function->InitParameter(1, AnyTagged(zone)); // new.target
function->InitParameter(2, UntaggedIntegral32(zone)); // actual #arguments
return function;
}
FunctionType*
CallFunctionWithFeedbackDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 2, zone)->AsFunction();
function->InitParameter(0, Type::Receiver()); // JSFunction
function->InitParameter(1, SmiType(zone));
return function;
}
FunctionType* CallFunctionWithFeedbackAndVectorDescriptor::
BuildCallInterfaceDescriptorFunctionType(Isolate* isolate,
int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 3, zone)->AsFunction();
function->InitParameter(0, Type::Receiver()); // JSFunction
function->InitParameter(1, SmiType(zone));
function->InitParameter(2, AnyTagged(zone));
return function;
}
FunctionType*
ArrayConstructorDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 3, zone)->AsFunction();
function->InitParameter(0, Type::Receiver()); // JSFunction
function->InitParameter(1, AnyTagged(zone));
function->InitParameter(2, UntaggedIntegral32(zone));
return function;
}
FunctionType*
InternalArrayConstructorDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 2, zone)->AsFunction();
function->InitParameter(0, Type::Receiver()); // JSFunction
function->InitParameter(1, UntaggedIntegral32(zone));
return function;
}
FunctionType*
ArgumentAdaptorDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 4, zone)->AsFunction();
function->InitParameter(0, Type::Receiver()); // JSFunction
function->InitParameter(1, AnyTagged(zone)); // the new target
function->InitParameter(2, UntaggedIntegral32(zone)); // actual #arguments
function->InitParameter(3, UntaggedIntegral32(zone)); // expected #arguments
return function;
}
CallInterfaceDescriptor ApiCallbackDescriptorBase::ForArgs(Isolate* isolate,
int argc) {
switch (argc) {
case 0:
return ApiCallbackWith0ArgsDescriptor(isolate);
case 1:
return ApiCallbackWith1ArgsDescriptor(isolate);
case 2:
return ApiCallbackWith2ArgsDescriptor(isolate);
case 3:
return ApiCallbackWith3ArgsDescriptor(isolate);
case 4:
return ApiCallbackWith4ArgsDescriptor(isolate);
case 5:
return ApiCallbackWith5ArgsDescriptor(isolate);
case 6:
return ApiCallbackWith6ArgsDescriptor(isolate);
case 7:
return ApiCallbackWith7ArgsDescriptor(isolate);
default:
UNREACHABLE();
return VoidDescriptor(isolate);
}
}
FunctionType*
ApiCallbackDescriptorBase::BuildCallInterfaceDescriptorFunctionTypeWithArg(
Isolate* isolate, int parameter_count, int argc) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 4 + argc, zone)
->AsFunction();
function->InitParameter(0, AnyTagged(zone)); // callee
function->InitParameter(1, AnyTagged(zone)); // call_data
function->InitParameter(2, AnyTagged(zone)); // holder
function->InitParameter(3, ExternalPointer(zone)); // api_function_address
for (int i = 0; i < argc; i++) {
function->InitParameter(i, AnyTagged(zone));
}
return function;
}
FunctionType*
InterpreterDispatchDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int parameter_count) {
Zone* zone = isolate->interface_descriptor_zone();
FunctionType* function =
Type::Function(AnyTagged(zone), Type::Undefined(), 5, zone)->AsFunction();
function->InitParameter(kAccumulatorParameter, AnyTagged(zone));
function->InitParameter(kRegisterFileParameter, ExternalPointer(zone));
function->InitParameter(kBytecodeOffsetParameter, UntaggedIntegral32(zone));
function->InitParameter(kBytecodeArrayParameter, AnyTagged(zone));
function->InitParameter(kDispatchTableParameter, AnyTagged(zone));
return function;
}
} // namespace internal
} // namespace v8
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