1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
9 #include "src/interface-descriptors.h"
14 const Register CallInterfaceDescriptor::ContextRegister() { return rsi; }
17 const Register LoadDescriptor::ReceiverRegister() { return rdx; }
18 const Register LoadDescriptor::NameRegister() { return rcx; }
21 const Register VectorLoadICTrampolineDescriptor::SlotRegister() { return rax; }
24 const Register VectorLoadICDescriptor::VectorRegister() { return rbx; }
27 const Register StoreDescriptor::ReceiverRegister() { return rdx; }
28 const Register StoreDescriptor::NameRegister() { return rcx; }
29 const Register StoreDescriptor::ValueRegister() { return rax; }
32 const Register StoreTransitionDescriptor::MapRegister() { return rbx; }
35 const Register ElementTransitionAndStoreDescriptor::MapRegister() {
40 const Register InstanceofDescriptor::left() { return rax; }
41 const Register InstanceofDescriptor::right() { return rdx; }
44 const Register ArgumentsAccessReadDescriptor::index() { return rdx; }
45 const Register ArgumentsAccessReadDescriptor::parameter_count() { return rax; }
48 const Register ApiGetterDescriptor::function_address() { return r8; }
51 const Register MathPowTaggedDescriptor::exponent() { return rdx; }
54 const Register MathPowIntegerDescriptor::exponent() {
55 return MathPowTaggedDescriptor::exponent();
59 void FastNewClosureDescriptor::Initialize(CallInterfaceDescriptorData* data) {
60 Register registers[] = {rsi, rbx};
61 data->Initialize(arraysize(registers), registers, NULL);
65 void FastNewContextDescriptor::Initialize(CallInterfaceDescriptorData* data) {
66 Register registers[] = {rsi, rdi};
67 data->Initialize(arraysize(registers), registers, NULL);
71 void ToNumberDescriptor::Initialize(CallInterfaceDescriptorData* data) {
72 // ToNumberStub invokes a function, and therefore needs a context.
73 Register registers[] = {rsi, rax};
74 data->Initialize(arraysize(registers), registers, NULL);
78 void NumberToStringDescriptor::Initialize(CallInterfaceDescriptorData* data) {
79 Register registers[] = {rsi, rax};
80 data->Initialize(arraysize(registers), registers, NULL);
84 void FastCloneShallowArrayDescriptor::Initialize(
85 CallInterfaceDescriptorData* data) {
86 Register registers[] = {rsi, rax, rbx, rcx};
87 Representation representations[] = {
88 Representation::Tagged(), Representation::Tagged(), Representation::Smi(),
89 Representation::Tagged()};
90 data->Initialize(arraysize(registers), registers, representations);
94 void FastCloneShallowObjectDescriptor::Initialize(
95 CallInterfaceDescriptorData* data) {
96 Register registers[] = {rsi, rax, rbx, rcx, rdx};
97 data->Initialize(arraysize(registers), registers, NULL);
101 void CreateAllocationSiteDescriptor::Initialize(
102 CallInterfaceDescriptorData* data) {
103 Register registers[] = {rsi, rbx, rdx};
104 Representation representations[] = {Representation::Tagged(),
105 Representation::Tagged(),
106 Representation::Smi()};
107 data->Initialize(arraysize(registers), registers, representations);
111 void CreateWeakCellDescriptor::Initialize(CallInterfaceDescriptorData* data) {
112 Register registers[] = {rsi, rbx, rdx, rdi};
113 Representation representations[] = {
114 Representation::Tagged(), Representation::Tagged(), Representation::Smi(),
115 Representation::Tagged()};
116 data->Initialize(arraysize(registers), registers, representations);
120 void StoreArrayLiteralElementDescriptor::Initialize(
121 CallInterfaceDescriptorData* data) {
122 Register registers[] = {rsi, rcx, rax};
123 data->Initialize(arraysize(registers), registers, NULL);
127 void CallFunctionDescriptor::Initialize(CallInterfaceDescriptorData* data) {
128 Register registers[] = {rsi, rdi};
129 data->Initialize(arraysize(registers), registers, NULL);
133 void CallFunctionWithFeedbackDescriptor::Initialize(
134 CallInterfaceDescriptorData* data) {
135 Register registers[] = {rsi, rdi, rdx};
136 Representation representations[] = {Representation::Tagged(),
137 Representation::Tagged(),
138 Representation::Smi()};
139 data->Initialize(arraysize(registers), registers, representations);
143 void CallFunctionWithFeedbackAndVectorDescriptor::Initialize(
144 CallInterfaceDescriptorData* data) {
145 Register registers[] = {rsi, rdi, rdx, rbx};
146 Representation representations[] = {
147 Representation::Tagged(), Representation::Tagged(), Representation::Smi(),
148 Representation::Tagged()};
149 data->Initialize(arraysize(registers), registers, representations);
153 void CallConstructDescriptor::Initialize(CallInterfaceDescriptorData* data) {
154 // rax : number of arguments
155 // rbx : feedback vector
156 // rdx : (only if rbx is not the megamorphic symbol) slot in feedback
158 // rdi : constructor function
159 // TODO(turbofan): So far we don't gather type feedback and hence skip the
160 // slot parameter, but ArrayConstructStub needs the vector to be undefined.
161 Register registers[] = {rsi, rax, rdi, rbx};
162 data->Initialize(arraysize(registers), registers, NULL);
166 void RegExpConstructResultDescriptor::Initialize(
167 CallInterfaceDescriptorData* data) {
168 Register registers[] = {rsi, rcx, rbx, rax};
169 data->Initialize(arraysize(registers), registers, NULL);
173 void TransitionElementsKindDescriptor::Initialize(
174 CallInterfaceDescriptorData* data) {
175 Register registers[] = {rsi, rax, rbx};
176 data->Initialize(arraysize(registers), registers, NULL);
180 void AllocateHeapNumberDescriptor::Initialize(
181 CallInterfaceDescriptorData* data) {
184 Register registers[] = {rsi};
185 data->Initialize(arraysize(registers), registers, nullptr);
189 void ArrayConstructorConstantArgCountDescriptor::Initialize(
190 CallInterfaceDescriptorData* data) {
192 // rax -- number of arguments
194 // rbx -- allocation site with elements kind
195 Register registers[] = {rsi, rdi, rbx};
196 data->Initialize(arraysize(registers), registers, NULL);
200 void ArrayConstructorDescriptor::Initialize(CallInterfaceDescriptorData* data) {
201 // stack param count needs (constructor pointer, and single argument)
202 Register registers[] = {rsi, rdi, rbx, rax};
203 Representation representations[] = {
204 Representation::Tagged(), Representation::Tagged(),
205 Representation::Tagged(), Representation::Integer32()};
206 data->Initialize(arraysize(registers), registers, representations);
210 void InternalArrayConstructorConstantArgCountDescriptor::Initialize(
211 CallInterfaceDescriptorData* data) {
214 // rax -- number of arguments
215 // rdi -- constructor function
216 Register registers[] = {rsi, rdi};
217 data->Initialize(arraysize(registers), registers, NULL);
221 void InternalArrayConstructorDescriptor::Initialize(
222 CallInterfaceDescriptorData* data) {
223 // stack param count needs (constructor pointer, and single argument)
224 Register registers[] = {rsi, rdi, rax};
225 Representation representations[] = {Representation::Tagged(),
226 Representation::Tagged(),
227 Representation::Integer32()};
228 data->Initialize(arraysize(registers), registers, representations);
232 void CompareNilDescriptor::Initialize(CallInterfaceDescriptorData* data) {
233 Register registers[] = {rsi, rax};
234 data->Initialize(arraysize(registers), registers, NULL);
238 void ToBooleanDescriptor::Initialize(CallInterfaceDescriptorData* data) {
239 Register registers[] = {rsi, rax};
240 data->Initialize(arraysize(registers), registers, NULL);
244 void BinaryOpDescriptor::Initialize(CallInterfaceDescriptorData* data) {
245 Register registers[] = {rsi, rdx, rax};
246 data->Initialize(arraysize(registers), registers, NULL);
250 void BinaryOpWithAllocationSiteDescriptor::Initialize(
251 CallInterfaceDescriptorData* data) {
252 Register registers[] = {rsi, rcx, rdx, rax};
253 data->Initialize(arraysize(registers), registers, NULL);
257 void StringAddDescriptor::Initialize(CallInterfaceDescriptorData* data) {
258 Register registers[] = {rsi, rdx, rax};
259 data->Initialize(arraysize(registers), registers, NULL);
263 void KeyedDescriptor::Initialize(CallInterfaceDescriptorData* data) {
264 Register registers[] = {
268 Representation representations[] = {
269 Representation::Tagged(), // context
270 Representation::Tagged(), // key
272 data->Initialize(arraysize(registers), registers, representations);
276 void NamedDescriptor::Initialize(CallInterfaceDescriptorData* data) {
277 Register registers[] = {
281 Representation representations[] = {
282 Representation::Tagged(), // context
283 Representation::Tagged(), // name
285 data->Initialize(arraysize(registers), registers, representations);
289 void CallHandlerDescriptor::Initialize(CallInterfaceDescriptorData* data) {
290 Register registers[] = {
294 Representation representations[] = {
295 Representation::Tagged(), // context
296 Representation::Tagged(), // receiver
298 data->Initialize(arraysize(registers), registers, representations);
302 void ArgumentAdaptorDescriptor::Initialize(CallInterfaceDescriptorData* data) {
303 Register registers[] = {
306 rax, // actual number of arguments
307 rbx, // expected number of arguments
309 Representation representations[] = {
310 Representation::Tagged(), // context
311 Representation::Tagged(), // JSFunction
312 Representation::Integer32(), // actual number of arguments
313 Representation::Integer32(), // expected number of arguments
315 data->Initialize(arraysize(registers), registers, representations);
319 void ApiFunctionDescriptor::Initialize(CallInterfaceDescriptorData* data) {
320 Register registers[] = {
325 rdx, // api_function_address
326 rax, // actual number of arguments
328 Representation representations[] = {
329 Representation::Tagged(), // context
330 Representation::Tagged(), // callee
331 Representation::Tagged(), // call_data
332 Representation::Tagged(), // holder
333 Representation::External(), // api_function_address
334 Representation::Integer32(), // actual number of arguments
336 data->Initialize(arraysize(registers), registers, representations);
340 void ApiAccessorDescriptor::Initialize(CallInterfaceDescriptorData* data) {
341 Register registers[] = {
346 rdx, // api_function_address
348 Representation representations[] = {
349 Representation::Tagged(), // context
350 Representation::Tagged(), // callee
351 Representation::Tagged(), // call_data
352 Representation::Tagged(), // holder
353 Representation::External(), // api_function_address
355 data->Initialize(arraysize(registers), registers, representations);
358 } // namespace v8::internal
360 #endif // V8_TARGET_ARCH_X64