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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/v8.h"
#include "src/interface-descriptors.h"
namespace v8 {
namespace internal {
namespace {
// Constructors for common combined semantic and representation types.
Type* SmiType() {
return Type::Intersect(Type::SignedSmall(), Type::TaggedSigned());
}
Type* UntaggedSigned32() {
return Type::Intersect(Type::Signed32(), Type::UntaggedSigned32());
}
Type* AnyTagged() {
return Type::Intersect(
Type::Any(), Type::Union(Type::TaggedPointer(), Type::TaggedSigned()));
}
Type* ExternalPointer() {
return Type::Intersect(Type::Internal(), Type::UntaggedPointer());
}
}
Type::FunctionType* CallInterfaceDescriptor::BuildDefaultFunctionType(
Isolate* isolate, int parameter_count) {
Type::FunctionType* function =
Type::FunctionType::New(AnyTagged(), Type::Undefined(), parameter_count,
isolate->interface_descriptor_zone());
while (parameter_count-- != 0) {
function->InitParameter(parameter_count, AnyTagged());
}
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 "";
}
Type::FunctionType* LoadDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Type::FunctionType* function = Type::FunctionType::New(
AnyTagged(), Type::Undefined(), 3, isolate->interface_descriptor_zone());
function->InitParameter(0, AnyTagged());
function->InitParameter(1, AnyTagged());
function->InitParameter(2, SmiType());
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 ElementTransitionAndStoreDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {ValueRegister(), MapRegister(), NameRegister(),
ReceiverRegister()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void InstanceofDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {left(), right()};
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);
}
Type::FunctionType*
LoadWithVectorDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Type::FunctionType* function = Type::FunctionType::New(
AnyTagged(), Type::Undefined(), 4, isolate->interface_descriptor_zone());
function->InitParameter(0, AnyTagged());
function->InitParameter(1, AnyTagged());
function->InitParameter(2, SmiType());
function->InitParameter(3, AnyTagged());
return function;
}
void LoadWithVectorDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {ReceiverRegister(), NameRegister(), SlotRegister(),
VectorRegister()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
Type::FunctionType*
VectorStoreICDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Type::FunctionType* function = Type::FunctionType::New(
AnyTagged(), Type::Undefined(), 5, isolate->interface_descriptor_zone());
function->InitParameter(0, AnyTagged());
function->InitParameter(1, AnyTagged());
function->InitParameter(2, AnyTagged());
function->InitParameter(3, SmiType());
function->InitParameter(4, AnyTagged());
return function;
}
void VectorStoreICDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {ReceiverRegister(), NameRegister(), ValueRegister(),
SlotRegister(), VectorRegister()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
Type::FunctionType*
VectorStoreICTrampolineDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Type::FunctionType* function = Type::FunctionType::New(
AnyTagged(), Type::Undefined(), 4, isolate->interface_descriptor_zone());
function->InitParameter(0, AnyTagged());
function->InitParameter(1, AnyTagged());
function->InitParameter(2, AnyTagged());
function->InitParameter(3, SmiType());
return function;
}
void VectorStoreICTrampolineDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {ReceiverRegister(), NameRegister(), ValueRegister(),
SlotRegister()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
Type::FunctionType*
ApiGetterDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Type::FunctionType* function = Type::FunctionType::New(
AnyTagged(), Type::Undefined(), 1, isolate->interface_descriptor_zone());
function->InitParameter(0, ExternalPointer());
return function;
}
void ApiGetterDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {function_address()};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void ArgumentsAccessReadDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {index(), parameter_count()};
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);
}
Type::FunctionType*
FastCloneShallowArrayDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Type::FunctionType* function = Type::FunctionType::New(
AnyTagged(), Type::Undefined(), 3, isolate->interface_descriptor_zone());
function->InitParameter(0, AnyTagged());
function->InitParameter(1, SmiType());
function->InitParameter(2, AnyTagged());
return function;
}
Type::FunctionType*
CreateAllocationSiteDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Type::FunctionType* function = Type::FunctionType::New(
AnyTagged(), Type::Undefined(), 2, isolate->interface_descriptor_zone());
function->InitParameter(0, AnyTagged());
function->InitParameter(1, SmiType());
return function;
}
Type::FunctionType*
CreateWeakCellDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Type::FunctionType* function = Type::FunctionType::New(
AnyTagged(), Type::Undefined(), 3, isolate->interface_descriptor_zone());
function->InitParameter(0, AnyTagged());
function->InitParameter(1, SmiType());
function->InitParameter(2, AnyTagged());
return function;
}
Type::FunctionType*
CallFunctionWithFeedbackDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Type::FunctionType* function = Type::FunctionType::New(
AnyTagged(), Type::Undefined(), 2, isolate->interface_descriptor_zone());
function->InitParameter(0, Type::Receiver()); // JSFunction
function->InitParameter(1, SmiType());
return function;
}
Type::FunctionType* CallFunctionWithFeedbackAndVectorDescriptor::
BuildCallInterfaceDescriptorFunctionType(Isolate* isolate,
int paramater_count) {
Type::FunctionType* function = Type::FunctionType::New(
AnyTagged(), Type::Undefined(), 3, isolate->interface_descriptor_zone());
function->InitParameter(0, Type::Receiver()); // JSFunction
function->InitParameter(1, SmiType());
function->InitParameter(2, AnyTagged());
return function;
}
Type::FunctionType*
ArrayConstructorDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Type::FunctionType* function = Type::FunctionType::New(
AnyTagged(), Type::Undefined(), 3, isolate->interface_descriptor_zone());
function->InitParameter(0, Type::Receiver()); // JSFunction
function->InitParameter(1, AnyTagged());
function->InitParameter(2, UntaggedSigned32());
return function;
}
Type::FunctionType*
InternalArrayConstructorDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Type::FunctionType* function = Type::FunctionType::New(
AnyTagged(), Type::Undefined(), 2, isolate->interface_descriptor_zone());
function->InitParameter(0, Type::Receiver()); // JSFunction
function->InitParameter(1, UntaggedSigned32());
return function;
}
Type::FunctionType*
ArgumentAdaptorDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Type::FunctionType* function = Type::FunctionType::New(
AnyTagged(), Type::Undefined(), 3, isolate->interface_descriptor_zone());
function->InitParameter(0, Type::Receiver()); // JSFunction
function->InitParameter(1, UntaggedSigned32()); // actual number of arguments
function->InitParameter(2,
UntaggedSigned32()); // expected number of arguments
return function;
}
Type::FunctionType*
ApiFunctionDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Type::FunctionType* function = Type::FunctionType::New(
AnyTagged(), Type::Undefined(), 5, isolate->interface_descriptor_zone());
function->InitParameter(0, AnyTagged()); // callee
function->InitParameter(1, AnyTagged()); // call_data
function->InitParameter(2, AnyTagged()); // holder
function->InitParameter(3, ExternalPointer()); // api_function_address
function->InitParameter(4, UntaggedSigned32()); // actual number of arguments
return function;
}
Type::FunctionType*
ApiAccessorDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Type::FunctionType* function = Type::FunctionType::New(
AnyTagged(), Type::Undefined(), 4, isolate->interface_descriptor_zone());
function->InitParameter(0, AnyTagged()); // callee
function->InitParameter(1, AnyTagged()); // call_data
function->InitParameter(2, AnyTagged()); // holder
function->InitParameter(3, ExternalPointer()); // api_function_address
return function;
}
Type::FunctionType*
MathRoundVariantDescriptor::BuildCallInterfaceDescriptorFunctionType(
Isolate* isolate, int paramater_count) {
Type::FunctionType* function = Type::FunctionType::New(
AnyTagged(), Type::Undefined(), 2, isolate->interface_descriptor_zone());
function->InitParameter(0, SmiType());
function->InitParameter(1, AnyTagged());
return function;
}
} // namespace internal
} // namespace v8
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