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1 // Copyright 2016 the V8 project authors. All rights reserved. | 1 // Copyright 2016 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 #include "src/builtins/builtins-utils.h" | 5 #include "src/builtins/builtins-utils.h" |
6 #include "src/builtins/builtins.h" | 6 #include "src/builtins/builtins.h" |
7 #include "src/code-factory.h" | 7 #include "src/code-factory.h" |
8 #include "src/code-stub-assembler.h" | 8 #include "src/code-stub-assembler.h" |
9 | 9 |
10 namespace v8 { | 10 namespace v8 { |
(...skipping 319 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
330 AtomicExchange(MachineType::Uint32(), backing_store, | 330 AtomicExchange(MachineType::Uint32(), backing_store, |
331 WordShl(index_word, 2), value_word32))); | 331 WordShl(index_word, 2), value_word32))); |
332 | 332 |
333 // This shouldn't happen, we've already validated the type. | 333 // This shouldn't happen, we've already validated the type. |
334 Bind(&other); | 334 Bind(&other); |
335 Unreachable(); | 335 Unreachable(); |
336 #endif // V8_TARGET_ARCH_MIPS || V8_TARGET_ARCH_MIPS64 || V8_TARGET_ARCH_PPC64 | 336 #endif // V8_TARGET_ARCH_MIPS || V8_TARGET_ARCH_MIPS64 || V8_TARGET_ARCH_PPC64 |
337 // || V8_TARGET_ARCH_PPC || V8_TARGET_ARCH_S390 || V8_TARGET_ARCH_S390X | 337 // || V8_TARGET_ARCH_PPC || V8_TARGET_ARCH_S390 || V8_TARGET_ARCH_S390X |
338 } | 338 } |
339 | 339 |
340 TF_BUILTIN(AtomicsCompareExchange, SharedArrayBufferBuiltinsAssembler) { | |
341 Node* array = Parameter(1); | |
342 Node* index = Parameter(2); | |
343 Node* old_value = Parameter(3); | |
344 Node* new_value = Parameter(4); | |
345 Node* context = Parameter(5 + 2); | |
346 | |
347 Node* instance_type; | |
348 Node* backing_store; | |
349 ValidateSharedTypedArray(array, context, &instance_type, &backing_store); | |
350 | |
351 Node* index_integer; | |
352 Node* index_word32 = | |
353 ConvertTaggedAtomicIndexToWord32(index, context, &index_integer); | |
354 Node* array_length_word32 = TruncateTaggedToWord32( | |
355 context, LoadObjectField(array, JSTypedArray::kLengthOffset)); | |
356 ValidateAtomicIndex(index_word32, array_length_word32, context); | |
357 | |
358 Node* old_value_integer = ToInteger(context, old_value); | |
359 | |
360 Node* new_value_integer = ToInteger(context, new_value); | |
361 | |
362 #if V8_TARGET_ARCH_MIPS || V8_TARGET_ARCH_MIPS64 || V8_TARGET_ARCH_PPC64 || \ | |
363 V8_TARGET_ARCH_PPC || V8_TARGET_ARCH_S390 || V8_TARGET_ARCH_S390X | |
364 a.Return(a.CallRuntime(Runtime::kAtomicsCompareExchange, context, array, | |
Jakob Kummerow
2017/03/10 21:05:39
s/a.//g
aseemgarg
2017/03/10 21:09:54
Done.
| |
365 index_integer, old_value_integer, new_value_integer)); | |
366 #else | |
367 Node* index_word = ChangeUint32ToWord(index_word32); | |
368 | |
369 Node* old_value_word32 = TruncateTaggedToWord32(context, old_value_integer); | |
370 | |
371 Node* new_value_word32 = TruncateTaggedToWord32(context, new_value_integer); | |
372 | |
373 CodeStubAssembler::Label i8(this), u8(this), i16(this), u16(this), i32(this), | |
Jakob Kummerow
2017/03/10 21:05:39
s/CodeStubAssembler:://
aseemgarg
2017/03/10 21:09:54
Done.
| |
374 u32(this), other(this); | |
375 int32_t case_values[] = { | |
376 FIXED_INT8_ARRAY_TYPE, FIXED_UINT8_ARRAY_TYPE, FIXED_INT16_ARRAY_TYPE, | |
377 FIXED_UINT16_ARRAY_TYPE, FIXED_INT32_ARRAY_TYPE, FIXED_UINT32_ARRAY_TYPE, | |
378 }; | |
379 CodeStubAssembler::Label* case_labels[] = { | |
Jakob Kummerow
2017/03/10 21:05:39
s/CodeStubAssembler:://
aseemgarg
2017/03/10 21:09:54
Done.
| |
380 &i8, &u8, &i16, &u16, &i32, &u32, | |
381 }; | |
382 Switch(instance_type, &other, case_values, case_labels, | |
383 arraysize(case_labels)); | |
384 | |
385 Bind(&i8); | |
386 Return(SmiFromWord32(AtomicCompareExchange(MachineType::Int8(), backing_store, | |
387 index_word, old_value_word32, | |
388 new_value_word32))); | |
389 | |
390 Bind(&u8); | |
391 Return(SmiFromWord32( | |
392 AtomicCompareExchange(MachineType::Uint8(), backing_store, index_word, | |
393 old_value_word32, new_value_word32))); | |
394 | |
395 Bind(&i16); | |
396 Return(SmiFromWord32(AtomicCompareExchange( | |
397 MachineType::Int16(), backing_store, WordShl(index_word, 1), | |
398 old_value_word32, new_value_word32))); | |
399 | |
400 Bind(&u16); | |
401 Return(SmiFromWord32(AtomicCompareExchange( | |
402 MachineType::Uint16(), backing_store, WordShl(index_word, 1), | |
403 old_value_word32, new_value_word32))); | |
404 | |
405 Bind(&i32); | |
406 Return(ChangeInt32ToTagged(AtomicCompareExchange( | |
407 MachineType::Int32(), backing_store, WordShl(index_word, 2), | |
408 old_value_word32, new_value_word32))); | |
409 | |
410 Bind(&u32); | |
411 Return(ChangeUint32ToTagged(AtomicCompareExchange( | |
412 MachineType::Uint32(), backing_store, WordShl(index_word, 2), | |
413 old_value_word32, new_value_word32))); | |
414 | |
415 // This shouldn't happen, we've already validated the type. | |
416 Bind(&other); | |
417 Unreachable(); | |
418 #endif // V8_TARGET_ARCH_MIPS || V8_TARGET_ARCH_MIPS64 || V8_TARGET_ARCH_PPC64 | |
419 // || V8_TARGET_ARCH_PPC || V8_TARGET_ARCH_S390 || V8_TARGET_ARCH_S390X | |
420 } | |
421 | |
340 } // namespace internal | 422 } // namespace internal |
341 } // namespace v8 | 423 } // namespace v8 |
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