// Copyright 2012 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#if V8_TARGET_ARCH_MIPS
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#include "src/interface-descriptors.h"
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namespace v8 {
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namespace internal {
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const Register CallInterfaceDescriptor::ContextRegister() { return cp; }
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void CallInterfaceDescriptor::DefaultInitializePlatformSpecific(
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CallInterfaceDescriptorData* data, int register_parameter_count) {
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const Register default_stub_registers[] = {a0, a1, a2, a3, t0};
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CHECK_LE(static_cast<size_t>(register_parameter_count),
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arraysize(default_stub_registers));
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data->InitializePlatformSpecific(register_parameter_count,
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default_stub_registers);
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}
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void RecordWriteDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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const Register default_stub_registers[] = {a0, a1, a2, a3, kReturnRegister0};
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data->RestrictAllocatableRegisters(default_stub_registers,
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arraysize(default_stub_registers));
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CHECK_LE(static_cast<size_t>(kParameterCount),
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arraysize(default_stub_registers));
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data->InitializePlatformSpecific(kParameterCount, default_stub_registers);
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}
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const Register FastNewFunctionContextDescriptor::ScopeInfoRegister() {
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return a1;
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}
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const Register FastNewFunctionContextDescriptor::SlotsRegister() { return a0; }
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const Register LoadDescriptor::ReceiverRegister() { return a1; }
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const Register LoadDescriptor::NameRegister() { return a2; }
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const Register LoadDescriptor::SlotRegister() { return a0; }
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const Register LoadWithVectorDescriptor::VectorRegister() { return a3; }
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const Register StoreDescriptor::ReceiverRegister() { return a1; }
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const Register StoreDescriptor::NameRegister() { return a2; }
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const Register StoreDescriptor::ValueRegister() { return a0; }
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const Register StoreDescriptor::SlotRegister() { return t0; }
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const Register StoreWithVectorDescriptor::VectorRegister() { return a3; }
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const Register StoreTransitionDescriptor::SlotRegister() { return t0; }
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const Register StoreTransitionDescriptor::VectorRegister() { return a3; }
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const Register StoreTransitionDescriptor::MapRegister() { return t1; }
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const Register ApiGetterDescriptor::HolderRegister() { return a0; }
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const Register ApiGetterDescriptor::CallbackRegister() { return a3; }
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const Register GrowArrayElementsDescriptor::ObjectRegister() { return a0; }
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const Register GrowArrayElementsDescriptor::KeyRegister() { return a3; }
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// static
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const Register TypeConversionDescriptor::ArgumentRegister() { return a0; }
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void TypeofDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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Register registers[] = {a3};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void CallFunctionDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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Register registers[] = {a1};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void CallTrampolineDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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// a1: target
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// a0: number of arguments
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Register registers[] = {a1, a0};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void CallVarargsDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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// a0 : number of arguments (on the stack, not including receiver)
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// a1 : the target to call
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// a2 : arguments list (FixedArray)
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// t0 : arguments list length (untagged)
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Register registers[] = {a1, a0, a2, t0};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void CallForwardVarargsDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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// a1: the target to call
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// a0: number of arguments
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// a2: start index (to support rest parameters)
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Register registers[] = {a1, a0, a2};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void CallWithSpreadDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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// a0 : number of arguments (on the stack, not including receiver)
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// a1 : the target to call
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// a2 : the object to spread
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Register registers[] = {a1, a0, a2};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void CallWithArrayLikeDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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// a1 : the target to call
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// a2 : the arguments list
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Register registers[] = {a1, a2};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void ConstructVarargsDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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// a0 : number of arguments (on the stack, not including receiver)
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// a1 : the target to call
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// a3 : the new target
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// a2 : arguments list (FixedArray)
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// t0 : arguments list length (untagged)
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Register registers[] = {a1, a3, a0, a2, t0};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void ConstructForwardVarargsDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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// a1: the target to call
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// a3: new target
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// a0: number of arguments
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// a2: start index (to support rest parameters)
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Register registers[] = {a1, a3, a0, a2};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void ConstructWithSpreadDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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// a0 : number of arguments (on the stack, not including receiver)
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// a1 : the target to call
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// a3 : the new target
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// a2 : the object to spread
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Register registers[] = {a1, a3, a0, a2};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void ConstructWithArrayLikeDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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// a1 : the target to call
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// a3 : the new target
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// a2 : the arguments list
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Register registers[] = {a1, a3, a2};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void ConstructStubDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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// a1: target
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// a3: new target
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// a0: number of arguments
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// a2: allocation site or undefined
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Register registers[] = {a1, a3, a0, a2};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void AbortDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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Register registers[] = {a0};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void AllocateHeapNumberDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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// register state
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data->InitializePlatformSpecific(0, nullptr);
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}
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void CompareDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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Register registers[] = {a1, a0};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void BinaryOpDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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Register registers[] = {a1, a0};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void ArgumentAdaptorDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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Register registers[] = {
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a1, // JSFunction
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a3, // the new target
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a0, // actual number of arguments
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a2, // expected number of arguments
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};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void ApiCallbackDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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Register registers[] = {
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JavaScriptFrame::context_register(), // callee context
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t0, // call_data
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a2, // holder
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a1, // api_function_address
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};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void InterpreterDispatchDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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Register registers[] = {
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kInterpreterAccumulatorRegister, kInterpreterBytecodeOffsetRegister,
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kInterpreterBytecodeArrayRegister, kInterpreterDispatchTableRegister};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void InterpreterPushArgsThenCallDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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Register registers[] = {
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a0, // argument count (not including receiver)
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a2, // address of first argument
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a1 // the target callable to be call
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};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void InterpreterPushArgsThenConstructDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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Register registers[] = {
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a0, // argument count (not including receiver)
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a3, // new target
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a1, // constructor to call
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a2, // allocation site feedback if available, undefined otherwise.
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t4 // address of the first argument
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};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void ResumeGeneratorDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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Register registers[] = {
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v0, // the value to pass to the generator
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a1 // the JSGeneratorObject to resume
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};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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void FrameDropperTrampolineDescriptor::InitializePlatformSpecific(
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CallInterfaceDescriptorData* data) {
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Register registers[] = {
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a1, // loaded new FP
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};
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data->InitializePlatformSpecific(arraysize(registers), registers);
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}
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} // namespace internal
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} // namespace v8
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#endif // V8_TARGET_ARCH_MIPS
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