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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.
#if V8_TARGET_ARCH_ARM64
#include "src/interface-descriptors.h"
#include "src/frames.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[] = {x0, x1, x2, x3, x4};
CHECK_LE(static_cast<size_t>(register_parameter_count),
arraysize(default_stub_registers));
data->InitializePlatformSpecific(register_parameter_count,
default_stub_registers);
}
void RecordWriteDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
const Register default_stub_registers[] = {x0, x1, x2, x3, x4};
data->RestrictAllocatableRegisters(default_stub_registers,
arraysize(default_stub_registers));
CHECK_LE(static_cast<size_t>(kParameterCount),
arraysize(default_stub_registers));
data->InitializePlatformSpecific(kParameterCount, default_stub_registers);
}
const Register FastNewFunctionContextDescriptor::ScopeInfoRegister() {
return x1;
}
const Register FastNewFunctionContextDescriptor::SlotsRegister() { return x0; }
const Register LoadDescriptor::ReceiverRegister() { return x1; }
const Register LoadDescriptor::NameRegister() { return x2; }
const Register LoadDescriptor::SlotRegister() { return x0; }
const Register LoadWithVectorDescriptor::VectorRegister() { return x3; }
const Register StoreDescriptor::ReceiverRegister() { return x1; }
const Register StoreDescriptor::NameRegister() { return x2; }
const Register StoreDescriptor::ValueRegister() { return x0; }
const Register StoreDescriptor::SlotRegister() { return x4; }
const Register StoreWithVectorDescriptor::VectorRegister() { return x3; }
const Register StoreTransitionDescriptor::SlotRegister() { return x4; }
const Register StoreTransitionDescriptor::VectorRegister() { return x3; }
const Register StoreTransitionDescriptor::MapRegister() { return x5; }
const Register ApiGetterDescriptor::HolderRegister() { return x0; }
const Register ApiGetterDescriptor::CallbackRegister() { return x3; }
const Register GrowArrayElementsDescriptor::ObjectRegister() { return x0; }
const Register GrowArrayElementsDescriptor::KeyRegister() { return x3; }
// static
const Register TypeConversionDescriptor::ArgumentRegister() { return x0; }
void TypeofDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {x3};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void CallTrampolineDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// x1: target
// x0: number of arguments
Register registers[] = {x1, x0};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void CallVarargsDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// x0 : number of arguments (on the stack, not including receiver)
// x1 : the target to call
// x4 : arguments list length (untagged)
// x2 : arguments list (FixedArray)
Register registers[] = {x1, x0, x4, x2};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void CallForwardVarargsDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// x1: target
// x0: number of arguments
// x2: start index (to supported rest parameters)
Register registers[] = {x1, x0, x2};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void CallWithSpreadDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// x0 : number of arguments (on the stack, not including receiver)
// x1 : the target to call
// x2 : the object to spread
Register registers[] = {x1, x0, x2};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void CallWithArrayLikeDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// x1 : the target to call
// x2 : the arguments list
Register registers[] = {x1, x2};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void ConstructVarargsDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// x0 : number of arguments (on the stack, not including receiver)
// x1 : the target to call
// x3 : the new target
// x4 : arguments list length (untagged)
// x2 : arguments list (FixedArray)
Register registers[] = {x1, x3, x0, x4, x2};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void ConstructForwardVarargsDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// x3: new target
// x1: target
// x0: number of arguments
// x2: start index (to supported rest parameters)
Register registers[] = {x1, x3, x0, x2};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void ConstructWithSpreadDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// x0 : number of arguments (on the stack, not including receiver)
// x1 : the target to call
// x3 : the new target
// x2 : the object to spread
Register registers[] = {x1, x3, x0, x2};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void ConstructWithArrayLikeDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// x1 : the target to call
// x3 : the new target
// x2 : the arguments list
Register registers[] = {x1, x3, x2};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void ConstructStubDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// x3: new target
// x1: target
// x0: number of arguments
// x2: allocation site or undefined
Register registers[] = {x1, x3, x0, x2};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void AbortDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {x1};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void AllocateHeapNumberDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
data->InitializePlatformSpecific(0, nullptr);
}
void CompareDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// x1: left operand
// x0: right operand
Register registers[] = {x1, x0};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void BinaryOpDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
// x1: left operand
// x0: right operand
Register registers[] = {x1, x0};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void ArgumentsAdaptorDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {
x1, // JSFunction
x3, // the new target
x0, // actual number of arguments
x2, // expected number of arguments
};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void ApiCallbackDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {
JavaScriptFrame::context_register(), // kTargetContext
x1, // kApiFunctionAddress
x2, // kArgc
};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void InterpreterDispatchDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {
kInterpreterAccumulatorRegister, kInterpreterBytecodeOffsetRegister,
kInterpreterBytecodeArrayRegister, kInterpreterDispatchTableRegister};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void InterpreterPushArgsThenCallDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {
x0, // argument count (not including receiver)
x2, // address of first argument
x1 // the target callable to be call
};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void InterpreterPushArgsThenConstructDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {
x0, // argument count (not including receiver)
x4, // address of the first argument
x1, // constructor to call
x3, // new target
x2, // allocation site feedback if available, undefined otherwise
};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void ResumeGeneratorDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {
x0, // the value to pass to the generator
x1 // the JSGeneratorObject to resume
};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void FrameDropperTrampolineDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {
x1, // loaded new FP
};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
void RunMicrotasksEntryDescriptor::InitializePlatformSpecific(
CallInterfaceDescriptorData* data) {
Register registers[] = {x0, x1};
data->InitializePlatformSpecific(arraysize(registers), registers);
}
} // namespace internal
} // namespace v8
#endif // V8_TARGET_ARCH_ARM64