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1 // Copyright 2012 the V8 project authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #if V8_TARGET_ARCH_MIPS | 5 #if V8_TARGET_ARCH_MIPS |
6 | 6 |
7 #include "src/codegen.h" | 7 #include "src/codegen.h" |
8 #include "src/debug/debug.h" | 8 #include "src/debug/debug.h" |
9 #include "src/deoptimizer.h" | 9 #include "src/deoptimizer.h" |
10 #include "src/full-codegen/full-codegen.h" | 10 #include "src/full-codegen/full-codegen.h" |
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260 FrameScope scope(masm, StackFrame::INTERNAL); | 260 FrameScope scope(masm, StackFrame::INTERNAL); |
261 ToStringStub stub(masm->isolate()); | 261 ToStringStub stub(masm->isolate()); |
262 __ Push(a1, a3); | 262 __ Push(a1, a3); |
263 __ CallStub(&stub); | 263 __ CallStub(&stub); |
264 __ Move(a0, v0); | 264 __ Move(a0, v0); |
265 __ Pop(a1, a3); | 265 __ Pop(a1, a3); |
266 } | 266 } |
267 __ bind(&done_convert); | 267 __ bind(&done_convert); |
268 } | 268 } |
269 | 269 |
270 // 3. Allocate a JSValue wrapper for the string. | 270 // 3. Check if original constructor and constructor differ. |
| 271 Label new_object; |
| 272 __ Branch(&new_object, ne, a1, Operand(a3)); |
| 273 |
| 274 // 4. Allocate a JSValue wrapper for the string. |
271 { | 275 { |
272 // ----------- S t a t e ------------- | 276 // ----------- S t a t e ------------- |
273 // -- a0 : the first argument | 277 // -- a0 : the first argument |
274 // -- a1 : constructor function | 278 // -- a1 : constructor function |
275 // -- a3 : original constructor | 279 // -- a3 : original constructor |
276 // -- ra : return address | 280 // -- ra : return address |
277 // ----------------------------------- | 281 // ----------------------------------- |
278 | 282 __ Allocate(JSValue::kSize, v0, a2, t0, &new_object, TAG_OBJECT); |
279 Label allocate, done_allocate, rt_call; | |
280 | |
281 // Fall back to runtime if the original constructor and function differ. | |
282 __ Branch(&rt_call, ne, a1, Operand(a3)); | |
283 | |
284 __ Allocate(JSValue::kSize, v0, a2, a3, &allocate, TAG_OBJECT); | |
285 __ bind(&done_allocate); | |
286 | 283 |
287 // Initialize the JSValue in eax. | 284 // Initialize the JSValue in eax. |
288 __ LoadGlobalFunctionInitialMap(a1, a2, a3); | 285 __ LoadGlobalFunctionInitialMap(a1, a2, a3); |
289 __ sw(a2, FieldMemOperand(v0, HeapObject::kMapOffset)); | 286 __ sw(a2, FieldMemOperand(v0, HeapObject::kMapOffset)); |
290 __ LoadRoot(a3, Heap::kEmptyFixedArrayRootIndex); | 287 __ LoadRoot(a3, Heap::kEmptyFixedArrayRootIndex); |
291 __ sw(a3, FieldMemOperand(v0, JSObject::kPropertiesOffset)); | 288 __ sw(a3, FieldMemOperand(v0, JSObject::kPropertiesOffset)); |
292 __ sw(a3, FieldMemOperand(v0, JSObject::kElementsOffset)); | 289 __ sw(a3, FieldMemOperand(v0, JSObject::kElementsOffset)); |
293 __ Ret(USE_DELAY_SLOT); | 290 __ Ret(USE_DELAY_SLOT); |
294 __ sw(a0, FieldMemOperand(v0, JSValue::kValueOffset)); | 291 __ sw(a0, FieldMemOperand(v0, JSValue::kValueOffset)); |
295 STATIC_ASSERT(JSValue::kSize == 4 * kPointerSize); | 292 STATIC_ASSERT(JSValue::kSize == 4 * kPointerSize); |
| 293 } |
296 | 294 |
297 // Fallback to the runtime to allocate in new space. | 295 // 5. Fallback to the runtime to create new object. |
298 __ bind(&allocate); | 296 __ bind(&new_object); |
299 { | 297 { |
300 FrameScope scope(masm, StackFrame::INTERNAL); | 298 FrameScope scope(masm, StackFrame::INTERNAL); |
301 __ Move(a2, Smi::FromInt(JSValue::kSize)); | 299 __ Push(a0, a1, a3); // first argument, constructor, original constructor |
302 __ Push(a0, a1, a2); | 300 __ CallRuntime(Runtime::kNewObject, 2); |
303 __ CallRuntime(Runtime::kAllocateInNewSpace, 1); | 301 __ Pop(a0); |
304 __ Pop(a0, a1); | |
305 } | |
306 __ jmp(&done_allocate); | |
307 | |
308 // Fallback to the runtime to create new object. | |
309 __ bind(&rt_call); | |
310 { | |
311 FrameScope scope(masm, StackFrame::INTERNAL); | |
312 __ Push(a0, a1, a1, a3); // constructor function, original constructor | |
313 __ CallRuntime(Runtime::kNewObject, 2); | |
314 __ Pop(a0, a1); | |
315 } | |
316 __ Ret(USE_DELAY_SLOT); | |
317 __ sw(a0, FieldMemOperand(v0, JSValue::kValueOffset)); | |
318 } | 302 } |
| 303 __ Ret(USE_DELAY_SLOT); |
| 304 __ sw(a0, FieldMemOperand(v0, JSValue::kValueOffset)); |
319 } | 305 } |
320 | 306 |
321 | 307 |
322 static void CallRuntimePassFunction( | 308 static void CallRuntimePassFunction( |
323 MacroAssembler* masm, Runtime::FunctionId function_id) { | 309 MacroAssembler* masm, Runtime::FunctionId function_id) { |
324 FrameScope scope(masm, StackFrame::INTERNAL); | 310 FrameScope scope(masm, StackFrame::INTERNAL); |
325 // Push a copy of the function onto the stack. | 311 // Push a copy of the function onto the stack. |
326 // Push call kind information and function as parameter to the runtime call. | 312 // Push call kind information and function as parameter to the runtime call. |
327 __ Push(a1, a1); | 313 __ Push(a1, a1); |
328 | 314 |
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1968 } | 1954 } |
1969 } | 1955 } |
1970 | 1956 |
1971 | 1957 |
1972 #undef __ | 1958 #undef __ |
1973 | 1959 |
1974 } // namespace internal | 1960 } // namespace internal |
1975 } // namespace v8 | 1961 } // namespace v8 |
1976 | 1962 |
1977 #endif // V8_TARGET_ARCH_MIPS | 1963 #endif // V8_TARGET_ARCH_MIPS |
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