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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 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
11 // with the distribution. | 11 // with the distribution. |
12 // * Neither the name of Google Inc. nor the names of its | 12 // * Neither the name of Google Inc. nor the names of its |
13 // contributors may be used to endorse or promote products derived | 13 // contributors may be used to endorse or promote products derived |
14 // from this software without specific prior written permission. | 14 // from this software without specific prior written permission. |
15 // | 15 // |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
28 #ifndef V8_A64_LITHIUM_A64_H_ | 28 #ifndef V8_ARM64_LITHIUM_ARM64_H_ |
29 #define V8_A64_LITHIUM_A64_H_ | 29 #define V8_ARM64_LITHIUM_ARM64_H_ |
30 | 30 |
31 #include "hydrogen.h" | 31 #include "hydrogen.h" |
32 #include "lithium-allocator.h" | 32 #include "lithium-allocator.h" |
33 #include "lithium.h" | 33 #include "lithium.h" |
34 #include "safepoint-table.h" | 34 #include "safepoint-table.h" |
35 #include "utils.h" | 35 #include "utils.h" |
36 | 36 |
37 namespace v8 { | 37 namespace v8 { |
38 namespace internal { | 38 namespace internal { |
39 | 39 |
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3011 // The operand created by UseRegister is guaranteed to be live until the end | 3011 // The operand created by UseRegister is guaranteed to be live until the end |
3012 // of the instruction. This means that register allocator will not reuse its | 3012 // of the instruction. This means that register allocator will not reuse its |
3013 // register for any other operand inside instruction. | 3013 // register for any other operand inside instruction. |
3014 MUST_USE_RESULT LOperand* UseRegister(HValue* value); | 3014 MUST_USE_RESULT LOperand* UseRegister(HValue* value); |
3015 | 3015 |
3016 // The operand created by UseRegisterAndClobber is guaranteed to be live until | 3016 // The operand created by UseRegisterAndClobber is guaranteed to be live until |
3017 // the end of the end of the instruction, and it may also be used as a scratch | 3017 // the end of the end of the instruction, and it may also be used as a scratch |
3018 // register by the instruction implementation. | 3018 // register by the instruction implementation. |
3019 // | 3019 // |
3020 // This behaves identically to ARM's UseTempRegister. However, it is renamed | 3020 // This behaves identically to ARM's UseTempRegister. However, it is renamed |
3021 // to discourage its use in A64, since in most cases it is better to allocate | 3021 // to discourage its use in ARM64, since in most cases it is better to |
3022 // a temporary register for the Lithium instruction. | 3022 // allocate a temporary register for the Lithium instruction. |
3023 MUST_USE_RESULT LOperand* UseRegisterAndClobber(HValue* value); | 3023 MUST_USE_RESULT LOperand* UseRegisterAndClobber(HValue* value); |
3024 | 3024 |
3025 // The operand created by UseRegisterAtStart is guaranteed to be live only at | 3025 // The operand created by UseRegisterAtStart is guaranteed to be live only at |
3026 // instruction start. The register allocator is free to assign the same | 3026 // instruction start. The register allocator is free to assign the same |
3027 // register to some other operand used inside instruction (i.e. temporary or | 3027 // register to some other operand used inside instruction (i.e. temporary or |
3028 // output). | 3028 // output). |
3029 MUST_USE_RESULT LOperand* UseRegisterAtStart(HValue* value); | 3029 MUST_USE_RESULT LOperand* UseRegisterAtStart(HValue* value); |
3030 | 3030 |
3031 // An input operand in a register or a constant operand. | 3031 // An input operand in a register or a constant operand. |
3032 MUST_USE_RESULT LOperand* UseRegisterOrConstant(HValue* value); | 3032 MUST_USE_RESULT LOperand* UseRegisterOrConstant(HValue* value); |
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3090 LAllocator* allocator_; | 3090 LAllocator* allocator_; |
3091 | 3091 |
3092 DISALLOW_COPY_AND_ASSIGN(LChunkBuilder); | 3092 DISALLOW_COPY_AND_ASSIGN(LChunkBuilder); |
3093 }; | 3093 }; |
3094 | 3094 |
3095 #undef DECLARE_HYDROGEN_ACCESSOR | 3095 #undef DECLARE_HYDROGEN_ACCESSOR |
3096 #undef DECLARE_CONCRETE_INSTRUCTION | 3096 #undef DECLARE_CONCRETE_INSTRUCTION |
3097 | 3097 |
3098 } } // namespace v8::internal | 3098 } } // namespace v8::internal |
3099 | 3099 |
3100 #endif // V8_A64_LITHIUM_A64_H_ | 3100 #endif // V8_ARM64_LITHIUM_ARM64_H_ |
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