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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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/compiler/code-generator.h" | 5 #include "src/compiler/code-generator.h" |
6 | 6 |
7 #include <limits> | 7 #include <limits> |
8 | 8 |
9 #include "src/compilation-info.h" | 9 #include "src/compilation-info.h" |
10 #include "src/compiler/code-generator-impl.h" | 10 #include "src/compiler/code-generator-impl.h" |
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2236 } | 2236 } |
2237 case kAtomicExchangeUint16: { | 2237 case kAtomicExchangeUint16: { |
2238 __ xchgw(i.InputRegister(0), i.MemoryOperand(1)); | 2238 __ xchgw(i.InputRegister(0), i.MemoryOperand(1)); |
2239 __ movzxwl(i.InputRegister(0), i.InputRegister(0)); | 2239 __ movzxwl(i.InputRegister(0), i.InputRegister(0)); |
2240 break; | 2240 break; |
2241 } | 2241 } |
2242 case kAtomicExchangeWord32: { | 2242 case kAtomicExchangeWord32: { |
2243 __ xchgl(i.InputRegister(0), i.MemoryOperand(1)); | 2243 __ xchgl(i.InputRegister(0), i.MemoryOperand(1)); |
2244 break; | 2244 break; |
2245 } | 2245 } |
| 2246 case kAtomicCompareExchangeInt8: { |
| 2247 __ cmpxchgb(i.MemoryOperand(2), i.InputRegister(1)); |
| 2248 __ movsxbl(rax, rax); |
| 2249 break; |
| 2250 } |
| 2251 case kAtomicCompareExchangeUint8: { |
| 2252 __ cmpxchgb(i.MemoryOperand(2), i.InputRegister(1)); |
| 2253 __ movzxbl(rax, rax); |
| 2254 break; |
| 2255 } |
| 2256 case kAtomicCompareExchangeInt16: { |
| 2257 __ cmpxchgw(i.MemoryOperand(2), i.InputRegister(1)); |
| 2258 __ movsxwl(rax, rax); |
| 2259 break; |
| 2260 } |
| 2261 case kAtomicCompareExchangeUint16: { |
| 2262 __ cmpxchgw(i.MemoryOperand(2), i.InputRegister(1)); |
| 2263 __ movzxwl(rax, rax); |
| 2264 break; |
| 2265 } |
| 2266 case kAtomicCompareExchangeWord32: { |
| 2267 __ cmpxchgl(i.MemoryOperand(2), i.InputRegister(1)); |
| 2268 break; |
| 2269 } |
2246 case kAtomicLoadInt8: | 2270 case kAtomicLoadInt8: |
2247 case kAtomicLoadUint8: | 2271 case kAtomicLoadUint8: |
2248 case kAtomicLoadInt16: | 2272 case kAtomicLoadInt16: |
2249 case kAtomicLoadUint16: | 2273 case kAtomicLoadUint16: |
2250 case kAtomicLoadWord32: | 2274 case kAtomicLoadWord32: |
2251 case kAtomicStoreWord8: | 2275 case kAtomicStoreWord8: |
2252 case kAtomicStoreWord16: | 2276 case kAtomicStoreWord16: |
2253 case kAtomicStoreWord32: | 2277 case kAtomicStoreWord32: |
2254 UNREACHABLE(); // Won't be generated by instruction selector. | 2278 UNREACHABLE(); // Won't be generated by instruction selector. |
2255 break; | 2279 break; |
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2873 int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc; | 2897 int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc; |
2874 __ Nop(padding_size); | 2898 __ Nop(padding_size); |
2875 } | 2899 } |
2876 } | 2900 } |
2877 | 2901 |
2878 #undef __ | 2902 #undef __ |
2879 | 2903 |
2880 } // namespace compiler | 2904 } // namespace compiler |
2881 } // namespace internal | 2905 } // namespace internal |
2882 } // namespace v8 | 2906 } // namespace v8 |
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