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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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 #ifndef V8_ARM64_DECODER_ARM64_INL_H_ | 5 #ifndef V8_ARM64_DECODER_ARM64_INL_H_ |
6 #define V8_ARM64_DECODER_ARM64_INL_H_ | 6 #define V8_ARM64_DECODER_ARM64_INL_H_ |
7 | 7 |
8 #include "src/arm64/decoder-arm64.h" | 8 #include "src/arm64/decoder-arm64.h" |
9 #include "src/globals.h" | 9 #include "src/globals.h" |
10 #include "src/utils.h" | 10 #include "src/utils.h" |
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206 } | 206 } |
207 | 207 |
208 | 208 |
209 template<typename V> | 209 template<typename V> |
210 void Decoder<V>::DecodeLoadStore(Instruction* instr) { | 210 void Decoder<V>::DecodeLoadStore(Instruction* instr) { |
211 DCHECK((instr->Bits(27, 24) == 0x8) || | 211 DCHECK((instr->Bits(27, 24) == 0x8) || |
212 (instr->Bits(27, 24) == 0x9) || | 212 (instr->Bits(27, 24) == 0x9) || |
213 (instr->Bits(27, 24) == 0xC) || | 213 (instr->Bits(27, 24) == 0xC) || |
214 (instr->Bits(27, 24) == 0xD) ); | 214 (instr->Bits(27, 24) == 0xD) ); |
215 | 215 |
216 if ((instr->Bit(28) == 0) && (instr->Bit(29) == 0) && (instr->Bit(26) == 1)) { | |
binji
2017/03/15 22:17:35
Not necessary to check for instr->Bit(24) here?
| |
217 DecodeAdvSIMDLoadStore(instr); | |
218 return; | |
219 } | |
220 | |
216 if (instr->Bit(24) == 0) { | 221 if (instr->Bit(24) == 0) { |
217 if (instr->Bit(28) == 0) { | 222 if (instr->Bit(28) == 0) { |
218 if (instr->Bit(29) == 0) { | 223 if (instr->Bit(29) == 0) { |
219 if (instr->Bit(26) == 0) { | 224 if (instr->Bit(26) == 0) { |
220 if (instr->Mask(0xA08000) == 0x800000 || | 225 if (instr->Mask(0xA08000) == 0x800000 || |
221 instr->Mask(0xA00000) == 0xA00000) { | 226 instr->Mask(0xA00000) == 0xA00000) { |
222 V::VisitUnallocated(instr); | 227 V::VisitUnallocated(instr); |
223 } else if (instr->Mask(0x808000) == 0) { | 228 } else if (instr->Mask(0x808000) == 0) { |
224 // Load/Store exclusive without acquire/release are unimplemented. | 229 V::VisitLoadStoreExclusive(instr); |
225 V::VisitUnimplemented(instr); | |
226 } else { | 230 } else { |
227 V::VisitLoadStoreAcquireRelease(instr); | 231 V::VisitLoadStoreAcquireRelease(instr); |
228 } | 232 } |
229 } else { | |
230 DecodeAdvSIMDLoadStore(instr); | |
231 } | 233 } |
232 } else { | 234 } else { |
233 if ((instr->Bits(31, 30) == 0x3) || | 235 if ((instr->Bits(31, 30) == 0x3) || |
234 (instr->Mask(0xC4400000) == 0x40000000)) { | 236 (instr->Mask(0xC4400000) == 0x40000000)) { |
235 V::VisitUnallocated(instr); | 237 V::VisitUnallocated(instr); |
236 } else { | 238 } else { |
237 if (instr->Bit(23) == 0) { | 239 if (instr->Bit(23) == 0) { |
238 if (instr->Mask(0xC4400000) == 0xC0400000) { | 240 if (instr->Mask(0xC4400000) == 0xC0400000) { |
239 V::VisitUnallocated(instr); | 241 V::VisitUnallocated(instr); |
240 } else { | 242 } else { |
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648 // TODO(all): Implement Advanced SIMD data processing instruction decode. | 650 // TODO(all): Implement Advanced SIMD data processing instruction decode. |
649 DCHECK(instr->Bits(27, 25) == 0x7); | 651 DCHECK(instr->Bits(27, 25) == 0x7); |
650 V::VisitUnimplemented(instr); | 652 V::VisitUnimplemented(instr); |
651 } | 653 } |
652 | 654 |
653 | 655 |
654 } // namespace internal | 656 } // namespace internal |
655 } // namespace v8 | 657 } // namespace v8 |
656 | 658 |
657 #endif // V8_ARM64_DECODER_ARM64_INL_H_ | 659 #endif // V8_ARM64_DECODER_ARM64_INL_H_ |
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