// 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/arm/interface-descriptors-arm.h"
#if V8_TARGET_ARCH_ARM
#include "src/interface-descriptors.h"
namespace v8 {
namespace internal {
const Register CallInterfaceDescriptor::ContextRegister() { return cp; }
void CallInterfaceDescriptor::DefaultInitializePlatformSpecific(
CallInterfaceDescriptorData* data, int register_parameter_count) {
const Register default_stub_registers[] = {r0, r1, r2, r3, r4};
CHECK_LE(static_cast<size_t>(register_parameter_count),
arraysize(default_stub_registers));
data->InitializePlatformSpecific(register_parameter_count,
default_stub_registers);
}
const Register FastNewFunctionContextDescriptor::FunctionRegister() {
return r1;
}
const Register FastNewFunctionContextDescriptor::SlotsRegister() { return r0; }
const Register LoadDescriptor::ReceiverRegister() { return r1; }
const Register LoadDescriptor::NameRegister() { return r2; }
const Register LoadDescriptor::SlotRegister() { return r0; }
const Register LoadWithVectorDescriptor::VectorRegister() { return r3; }
const Register LoadICProtoArrayDescriptor::HandlerRegister() { return r4; }
const Register StoreDescriptor::ReceiverRegister() { return r1; }
const Register StoreDescriptor::NameRegister() { return r2; }
const Register StoreDescriptor::ValueRegister() { return r0; }
const Register StoreDescriptor::SlotRegister() { return r4; }
const Register StoreWithVectorDescriptor::VectorRegister() { return r3; }
const Register StoreTransitionDescriptor::SlotRegister() { return r4; }
const Register StoreTransitionDescriptor::VectorRegister() { return r3; }
const Register StoreTransitionDescriptor::MapRegister() { return r5; }
const Register StringCompareDescriptor::LeftRegister() { return r1; }
const Register StringCompareDescriptor::RightRegister() { return r0; }
const Register ApiGetterDescriptor::HolderRegister() { return r0; }
const Register ApiGetterDescriptor::CallbackRegister() { return r3; }
const Register MathPowTaggedDescriptor::exponent() { return r2; }
const Register MathPowIntegerDescriptor::exponent() {
return MathPowTaggedDescriptor::exponent();
}
const Register GrowArrayElementsDescriptor::ObjectRegister() { return r0; }
const Register GrowArrayElementsDescriptor::KeyRegister() { return r3; }
void FastNewClosureDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r2};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void FastNewObjectDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r1, r3};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void FastNewRestParameterDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r1};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void FastNewSloppyArgumentsDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r1};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void FastNewStrictArgumentsDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r1};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
// static
const Register TypeConversionDescriptor::ArgumentRegister() { return r0; }
void TypeofDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r3};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void FastCloneRegExpDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r3, r2, r1, r0};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void FastCloneShallowArrayDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r3, r2, r1};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void FastCloneShallowObjectDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r3, r2, r1, r0};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void CreateAllocationSiteDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r2, r3};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void CreateWeakCellDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r2, r3, r1};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void CallFunctionDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r1};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void CallFunctionWithFeedbackDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r1, r3};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void CallFunctionWithFeedbackAndVectorDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r1, r0, r3, r2};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void CallConstructDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// r0 : number of arguments
// r1 : the function to call
// r2 : feedback vector
// r3 : slot in feedback vector (Smi, for RecordCallTarget)
// r4 : new target (for IsSuperConstructorCall)
// TODO(turbofan): So far we don't gather type feedback and hence skip the
// slot parameter, but ArrayConstructStub needs the vector to be undefined.
Register registers[] = {r0, r1, r4, r2};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void CallTrampolineDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// r0 : number of arguments
// r1 : the target to call
Register registers[] = {r1, r0};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void ConstructStubDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// r0 : number of arguments
// r1 : the target to call
// r3 : the new target
// r2 : allocation site or undefined
Register registers[] = {r1, r3, r0, r2};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void ConstructTrampolineDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// r0 : number of arguments
// r1 : the target to call
// r3 : the new target
Register registers[] = {r1, r3, r0};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void TransitionElementsKindDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r0, r1};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void AllocateHeapNumberDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
data->InitializePlatformSpecific(0, nullptr, nullptr);
}
#define SIMD128_ALLOC_DESC(TYPE, Type, type, lane_count, lane_type) \
void Allocate##Type##Descriptor::InitializePlatformSpecific( \
CallInterfaceDescriptorData* data) { \
data->InitializePlatformSpecific(0, nullptr, nullptr); \
}
SIMD128_TYPES(SIMD128_ALLOC_DESC)
#undef SIMD128_ALLOC_DESC
void ArrayNoArgumentConstructorDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// register state
// r0 -- number of arguments
// r1 -- function
// r2 -- allocation site with elements kind
Register registers[] = {r1, r2, r0};
data->InitializePlatformSpecific(arraysize(registers), registers, NULL);
}
void ArraySingleArgumentConstructorDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// register state
// r0 -- number of arguments
// r1 -- function
// r2 -- allocation site with elements kind
Register registers[] = {r1, r2, r0};
data->InitializePlatformSpecific(arraysize(registers), registers, NULL);
}
void ArrayNArgumentsConstructorDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// stack param count needs (constructor pointer, and single argument)
Register registers[] = {r1, r2, r0};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void VarArgFunctionDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// stack param count needs (arg count)
Register registers[] = {r0};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void CompareDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r1, r0};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void BinaryOpDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r1, r0};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void BinaryOpWithAllocationSiteDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r2, r1, r0};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void BinaryOpWithVectorDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// register state
// r1 -- lhs
// r0 -- rhs
// r4 -- slot id
// r3 -- vector
Register registers[] = {r1, r0, r4, r3};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void CountOpDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r1};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void StringAddDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {r1, r0};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void KeyedDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
static PlatformInterfaceDescriptor noInlineDescriptor =
PlatformInterfaceDescriptor(NEVER_INLINE_TARGET_ADDRESS);
Register registers[] = {
r2, // key
};
data->InitializePlatformSpecific(arraysize(registers), registers,
&noInlineDescriptor);
}
void NamedDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
static PlatformInterfaceDescriptor noInlineDescriptor =
PlatformInterfaceDescriptor(NEVER_INLINE_TARGET_ADDRESS);
Register registers[] = {
r2, // name
};
data->InitializePlatformSpecific(arraysize(registers), registers,
&noInlineDescriptor);
}
void CallHandlerDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
static PlatformInterfaceDescriptor default_descriptor =
PlatformInterfaceDescriptor(CAN_INLINE_TARGET_ADDRESS);
Register registers[] = {
r0, // receiver
};
data->InitializePlatformSpecific(arraysize(registers), registers,
&default_descriptor);
}
void ArgumentAdaptorDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
static PlatformInterfaceDescriptor default_descriptor =
PlatformInterfaceDescriptor(CAN_INLINE_TARGET_ADDRESS);
Register registers[] = {
r1, // JSFunction
r3, // the new target
r0, // actual number of arguments
r2, // expected number of arguments
};
data->InitializePlatformSpecific(arraysize(registers), registers,
&default_descriptor);
}
void ApiCallbackDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
static PlatformInterfaceDescriptor default_descriptor =
PlatformInterfaceDescriptor(CAN_INLINE_TARGET_ADDRESS);
Register registers[] = {
r0, // callee
r4, // call_data
r2, // holder
r1, // api_function_address
};
data->InitializePlatformSpecific(arraysize(registers), registers,
&default_descriptor);
}
void InterpreterDispatchDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {
kInterpreterAccumulatorRegister, kInterpreterBytecodeOffsetRegister,
kInterpreterBytecodeArrayRegister, kInterpreterDispatchTableRegister};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void InterpreterPushArgsAndCallDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {
r0, // argument count (not including receiver)
r2, // address of first argument
r1 // the target callable to be call
};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void InterpreterPushArgsAndConstructDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {
r0, // argument count (not including receiver)
r3, // new target
r1, // constructor to call
r2, // allocation site feedback if available, undefined otherwise
r4 // address of the first argument
};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void InterpreterPushArgsAndConstructArrayDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {
r0, // argument count (not including receiver)
r1, // target to call checked to be Array function
r2, // allocation site feedback if available, undefined otherwise
r3 // address of the first argument
};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void InterpreterCEntryDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {
r0, // argument count (argc)
r2, // address of first argument (argv)
r1 // the runtime function to call
};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void ResumeGeneratorDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {
r0, // the value to pass to the generator
r1, // the JSGeneratorObject to resume
r2 // the resume mode (tagged)
};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
} // namespace internal
} // namespace v8
#endif // V8_TARGET_ARCH_ARM