Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 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. |
| 4 | |
| 5 | #include "src/v8.h" |
| 6 | |
| 7 | #if V8_TARGET_ARCH_X64 |
| 8 | |
| 9 | #include "src/interface-descriptors.h" |
| 10 | |
| 11 | namespace v8 { |
| 12 | namespace internal { |
| 13 | |
| 14 | const Register CallInterfaceDescriptor::ContextRegister() { return rsi; } |
| 15 | |
| 16 | |
| 17 | const Register LoadDescriptor::ReceiverRegister() { return rdx; } |
| 18 | const Register LoadDescriptor::NameRegister() { return rcx; } |
| 19 | |
| 20 | |
| 21 | const Register VectorLoadICTrampolineDescriptor::SlotRegister() { return rax; } |
| 22 | |
| 23 | |
| 24 | const Register VectorLoadICDescriptor::VectorRegister() { return rbx; } |
| 25 | |
| 26 | |
| 27 | const Register StoreDescriptor::ReceiverRegister() { return rdx; } |
| 28 | const Register StoreDescriptor::NameRegister() { return rcx; } |
| 29 | const Register StoreDescriptor::ValueRegister() { return rax; } |
| 30 | |
| 31 | |
| 32 | const Register ElementTransitionAndStoreDescriptor::MapRegister() { |
| 33 | return rbx; |
| 34 | } |
| 35 | |
| 36 | |
| 37 | const Register InstanceofDescriptor::left() { return rax; } |
| 38 | const Register InstanceofDescriptor::right() { return rdx; } |
| 39 | |
| 40 | |
| 41 | const Register ArgumentsAccessReadDescriptor::index() { return rdx; } |
| 42 | const Register ArgumentsAccessReadDescriptor::parameter_count() { return rax; } |
| 43 | |
| 44 | |
| 45 | const Register ApiGetterDescriptor::function_address() { return r8; } |
| 46 | |
| 47 | |
| 48 | const Register MathPowTaggedDescriptor::exponent() { return rdx; } |
| 49 | |
| 50 | |
| 51 | const Register MathPowIntegerDescriptor::exponent() { |
| 52 | return MathPowTaggedDescriptor::exponent(); |
| 53 | } |
| 54 | |
| 55 | |
| 56 | void FastNewClosureDescriptor::Initialize(CallInterfaceDescriptorData* data) { |
| 57 | Register registers[] = {rsi, rbx}; |
| 58 | data->Initialize(arraysize(registers), registers, NULL); |
| 59 | } |
| 60 | |
| 61 | |
| 62 | void FastNewContextDescriptor::Initialize(CallInterfaceDescriptorData* data) { |
| 63 | Register registers[] = {rsi, rdi}; |
| 64 | data->Initialize(arraysize(registers), registers, NULL); |
| 65 | } |
| 66 | |
| 67 | |
| 68 | void ToNumberDescriptor::Initialize(CallInterfaceDescriptorData* data) { |
| 69 | // ToNumberStub invokes a function, and therefore needs a context. |
| 70 | Register registers[] = {rsi, rax}; |
| 71 | data->Initialize(arraysize(registers), registers, NULL); |
| 72 | } |
| 73 | |
| 74 | |
| 75 | void NumberToStringDescriptor::Initialize(CallInterfaceDescriptorData* data) { |
| 76 | Register registers[] = {rsi, rax}; |
| 77 | data->Initialize(arraysize(registers), registers, NULL); |
| 78 | } |
| 79 | |
| 80 | |
| 81 | void FastCloneShallowArrayDescriptor::Initialize( |
| 82 | CallInterfaceDescriptorData* data) { |
| 83 | Register registers[] = {rsi, rax, rbx, rcx}; |
| 84 | Representation representations[] = { |
| 85 | Representation::Tagged(), Representation::Tagged(), Representation::Smi(), |
| 86 | Representation::Tagged()}; |
| 87 | data->Initialize(arraysize(registers), registers, representations); |
| 88 | } |
| 89 | |
| 90 | |
| 91 | void FastCloneShallowObjectDescriptor::Initialize( |
| 92 | CallInterfaceDescriptorData* data) { |
| 93 | Register registers[] = {rsi, rax, rbx, rcx, rdx}; |
| 94 | data->Initialize(arraysize(registers), registers, NULL); |
| 95 | } |
| 96 | |
| 97 | |
| 98 | void CreateAllocationSiteDescriptor::Initialize( |
| 99 | CallInterfaceDescriptorData* data) { |
| 100 | Register registers[] = {rsi, rbx, rdx}; |
| 101 | data->Initialize(arraysize(registers), registers, NULL); |
| 102 | } |
| 103 | |
| 104 | |
| 105 | void StoreArrayLiteralElementDescriptor::Initialize( |
| 106 | CallInterfaceDescriptorData* data) { |
| 107 | Register registers[] = {rsi, rcx, rax}; |
| 108 | data->Initialize(arraysize(registers), registers, NULL); |
| 109 | } |
| 110 | |
| 111 | |
| 112 | void CallFunctionDescriptor::Initialize(CallInterfaceDescriptorData* data) { |
| 113 | Register registers[] = {rsi, rdi}; |
| 114 | data->Initialize(arraysize(registers), registers, NULL); |
| 115 | } |
| 116 | |
| 117 | |
| 118 | void CallFunctionWithFeedbackDescriptor::Initialize( |
| 119 | CallInterfaceDescriptorData* data) { |
| 120 | Register registers[] = {rsi, rdi, rdx}; |
| 121 | Representation representations[] = {Representation::Tagged(), |
| 122 | Representation::Tagged(), |
| 123 | Representation::Smi()}; |
| 124 | data->Initialize(arraysize(registers), registers, representations); |
| 125 | } |
| 126 | |
| 127 | |
| 128 | void CallConstructDescriptor::Initialize(CallInterfaceDescriptorData* data) { |
| 129 | // rax : number of arguments |
| 130 | // rbx : feedback vector |
| 131 | // rdx : (only if rbx is not the megamorphic symbol) slot in feedback |
| 132 | // vector (Smi) |
| 133 | // rdi : constructor function |
| 134 | // TODO(turbofan): So far we don't gather type feedback and hence skip the |
| 135 | // slot parameter, but ArrayConstructStub needs the vector to be undefined. |
| 136 | Register registers[] = {rsi, rax, rdi, rbx}; |
| 137 | data->Initialize(arraysize(registers), registers, NULL); |
| 138 | } |
| 139 | |
| 140 | |
| 141 | void RegExpConstructResultDescriptor::Initialize( |
| 142 | CallInterfaceDescriptorData* data) { |
| 143 | Register registers[] = {rsi, rcx, rbx, rax}; |
| 144 | data->Initialize(arraysize(registers), registers, NULL); |
| 145 | } |
| 146 | |
| 147 | |
| 148 | void TransitionElementsKindDescriptor::Initialize( |
| 149 | CallInterfaceDescriptorData* data) { |
| 150 | Register registers[] = {rsi, rax, rbx}; |
| 151 | data->Initialize(arraysize(registers), registers, NULL); |
| 152 | } |
| 153 | |
| 154 | |
| 155 | void ArrayConstructorConstantArgCountDescriptor::Initialize( |
| 156 | CallInterfaceDescriptorData* data) { |
| 157 | // register state |
| 158 | // rax -- number of arguments |
| 159 | // rdi -- function |
| 160 | // rbx -- allocation site with elements kind |
| 161 | Register registers[] = {rsi, rdi, rbx}; |
| 162 | data->Initialize(arraysize(registers), registers, NULL); |
| 163 | } |
| 164 | |
| 165 | |
| 166 | void ArrayConstructorDescriptor::Initialize(CallInterfaceDescriptorData* data) { |
| 167 | // stack param count needs (constructor pointer, and single argument) |
| 168 | Register registers[] = {rsi, rdi, rbx, rax}; |
| 169 | Representation representations[] = { |
| 170 | Representation::Tagged(), Representation::Tagged(), |
| 171 | Representation::Tagged(), Representation::Integer32()}; |
| 172 | data->Initialize(arraysize(registers), registers, representations); |
| 173 | } |
| 174 | |
| 175 | |
| 176 | void InternalArrayConstructorConstantArgCountDescriptor::Initialize( |
| 177 | CallInterfaceDescriptorData* data) { |
| 178 | // register state |
| 179 | // rsi -- context |
| 180 | // rax -- number of arguments |
| 181 | // rdi -- constructor function |
| 182 | Register registers[] = {rsi, rdi}; |
| 183 | data->Initialize(arraysize(registers), registers, NULL); |
| 184 | } |
| 185 | |
| 186 | |
| 187 | void InternalArrayConstructorDescriptor::Initialize( |
| 188 | CallInterfaceDescriptorData* data) { |
| 189 | // stack param count needs (constructor pointer, and single argument) |
| 190 | Register registers[] = {rsi, rdi, rax}; |
| 191 | Representation representations[] = {Representation::Tagged(), |
| 192 | Representation::Tagged(), |
| 193 | Representation::Integer32()}; |
| 194 | data->Initialize(arraysize(registers), registers, representations); |
| 195 | } |
| 196 | |
| 197 | |
| 198 | void CompareNilDescriptor::Initialize(CallInterfaceDescriptorData* data) { |
| 199 | Register registers[] = {rsi, rax}; |
| 200 | data->Initialize(arraysize(registers), registers, NULL); |
| 201 | } |
| 202 | |
| 203 | |
| 204 | void ToBooleanDescriptor::Initialize(CallInterfaceDescriptorData* data) { |
| 205 | Register registers[] = {rsi, rax}; |
| 206 | data->Initialize(arraysize(registers), registers, NULL); |
| 207 | } |
| 208 | |
| 209 | |
| 210 | void BinaryOpDescriptor::Initialize(CallInterfaceDescriptorData* data) { |
| 211 | Register registers[] = {rsi, rdx, rax}; |
| 212 | data->Initialize(arraysize(registers), registers, NULL); |
| 213 | } |
| 214 | |
| 215 | |
| 216 | void BinaryOpWithAllocationSiteDescriptor::Initialize( |
| 217 | CallInterfaceDescriptorData* data) { |
| 218 | Register registers[] = {rsi, rcx, rdx, rax}; |
| 219 | data->Initialize(arraysize(registers), registers, NULL); |
| 220 | } |
| 221 | |
| 222 | |
| 223 | void StringAddDescriptor::Initialize(CallInterfaceDescriptorData* data) { |
| 224 | Register registers[] = {rsi, rdx, rax}; |
| 225 | data->Initialize(arraysize(registers), registers, NULL); |
| 226 | } |
| 227 | |
| 228 | |
| 229 | void KeyedDescriptor::Initialize(CallInterfaceDescriptorData* data) { |
| 230 | Register registers[] = { |
| 231 | rsi, // context |
| 232 | rcx, // key |
| 233 | }; |
| 234 | Representation representations[] = { |
| 235 | Representation::Tagged(), // context |
| 236 | Representation::Tagged(), // key |
| 237 | }; |
| 238 | data->Initialize(arraysize(registers), registers, representations); |
| 239 | } |
| 240 | |
| 241 | |
| 242 | void NamedDescriptor::Initialize(CallInterfaceDescriptorData* data) { |
| 243 | Register registers[] = { |
| 244 | rsi, // context |
| 245 | rcx, // name |
| 246 | }; |
| 247 | Representation representations[] = { |
| 248 | Representation::Tagged(), // context |
| 249 | Representation::Tagged(), // name |
| 250 | }; |
| 251 | data->Initialize(arraysize(registers), registers, representations); |
| 252 | } |
| 253 | |
| 254 | |
| 255 | void CallHandlerDescriptor::Initialize(CallInterfaceDescriptorData* data) { |
| 256 | Register registers[] = { |
| 257 | rsi, // context |
| 258 | rdx, // receiver |
| 259 | }; |
| 260 | Representation representations[] = { |
| 261 | Representation::Tagged(), // context |
| 262 | Representation::Tagged(), // receiver |
| 263 | }; |
| 264 | data->Initialize(arraysize(registers), registers, representations); |
| 265 | } |
| 266 | |
| 267 | |
| 268 | void ArgumentAdaptorDescriptor::Initialize(CallInterfaceDescriptorData* data) { |
| 269 | Register registers[] = { |
| 270 | rsi, // context |
| 271 | rdi, // JSFunction |
| 272 | rax, // actual number of arguments |
| 273 | rbx, // expected number of arguments |
| 274 | }; |
| 275 | Representation representations[] = { |
| 276 | Representation::Tagged(), // context |
| 277 | Representation::Tagged(), // JSFunction |
| 278 | Representation::Integer32(), // actual number of arguments |
| 279 | Representation::Integer32(), // expected number of arguments |
| 280 | }; |
| 281 | data->Initialize(arraysize(registers), registers, representations); |
| 282 | } |
| 283 | |
| 284 | |
| 285 | void ApiFunctionDescriptor::Initialize(CallInterfaceDescriptorData* data) { |
| 286 | Register registers[] = { |
| 287 | rsi, // context |
| 288 | rax, // callee |
| 289 | rbx, // call_data |
| 290 | rcx, // holder |
| 291 | rdx, // api_function_address |
| 292 | }; |
| 293 | Representation representations[] = { |
| 294 | Representation::Tagged(), // context |
| 295 | Representation::Tagged(), // callee |
| 296 | Representation::Tagged(), // call_data |
| 297 | Representation::Tagged(), // holder |
| 298 | Representation::External(), // api_function_address |
| 299 | }; |
| 300 | data->Initialize(arraysize(registers), registers, representations); |
| 301 | } |
| 302 | } |
| 303 | } // namespace v8::internal |
| 304 | |
| 305 | #endif // V8_TARGET_ARCH_X64 |