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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 #ifndef V8_ARM64_ASSEMBLER_ARM64_H_ | 5 #ifndef V8_ARM64_ASSEMBLER_ARM64_H_ |
| 6 #define V8_ARM64_ASSEMBLER_ARM64_H_ | 6 #define V8_ARM64_ASSEMBLER_ARM64_H_ |
| 7 | 7 |
| 8 #include <deque> | 8 #include <deque> |
| 9 #include <list> | 9 #include <list> |
| 10 #include <map> | 10 #include <map> |
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| 918 void StartBlockPools() { | 918 void StartBlockPools() { |
| 919 StartBlockConstPool(); | 919 StartBlockConstPool(); |
| 920 StartBlockVeneerPool(); | 920 StartBlockVeneerPool(); |
| 921 } | 921 } |
| 922 void EndBlockPools() { | 922 void EndBlockPools() { |
| 923 EndBlockConstPool(); | 923 EndBlockConstPool(); |
| 924 EndBlockVeneerPool(); | 924 EndBlockVeneerPool(); |
| 925 } | 925 } |
| 926 | 926 |
| 927 // Debugging ---------------------------------------------------------------- | 927 // Debugging ---------------------------------------------------------------- |
| 928 AssemblerPositionsRecorder* positions_recorder() { | |
| 929 return &positions_recorder_; | |
| 930 } | |
| 931 void RecordComment(const char* msg); | 928 void RecordComment(const char* msg); |
| 932 | 929 |
| 933 // Record a deoptimization reason that can be used by a log or cpu profiler. | 930 // Record a deoptimization reason that can be used by a log or cpu profiler. |
| 934 // Use --trace-deopt to enable. | 931 // Use --trace-deopt to enable. |
| 935 void RecordDeoptReason(const int reason, int raw_position, int id); | 932 void RecordDeoptReason(const int reason, int raw_position, int id); |
| 936 | 933 |
| 937 int buffer_space() const; | 934 int buffer_space() const; |
| 938 | 935 |
| 939 // Mark generator continuation. | 936 // Mark generator continuation. |
| 940 void RecordGeneratorContinuation(); | 937 void RecordGeneratorContinuation(); |
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| 2174 // not later attempt (likely unsuccessfully) to patch it to branch directly to | 2171 // not later attempt (likely unsuccessfully) to patch it to branch directly to |
| 2175 // the label. | 2172 // the label. |
| 2176 void DeleteUnresolvedBranchInfoForLabel(Label* label); | 2173 void DeleteUnresolvedBranchInfoForLabel(Label* label); |
| 2177 // This function deletes the information related to the label by traversing | 2174 // This function deletes the information related to the label by traversing |
| 2178 // the label chain, and for each PC-relative instruction in the chain checking | 2175 // the label chain, and for each PC-relative instruction in the chain checking |
| 2179 // if pending unresolved information exists. Its complexity is proportional to | 2176 // if pending unresolved information exists. Its complexity is proportional to |
| 2180 // the length of the label chain. | 2177 // the length of the label chain. |
| 2181 void DeleteUnresolvedBranchInfoForLabelTraverse(Label* label); | 2178 void DeleteUnresolvedBranchInfoForLabelTraverse(Label* label); |
| 2182 | 2179 |
| 2183 private: | 2180 private: |
| 2184 AssemblerPositionsRecorder positions_recorder_; | |
| 2185 friend class AssemblerPositionsRecorder; | |
| 2186 friend class EnsureSpace; | 2181 friend class EnsureSpace; |
| 2187 friend class ConstPool; | 2182 friend class ConstPool; |
| 2188 }; | 2183 }; |
| 2189 | 2184 |
| 2190 class PatchingAssembler : public Assembler { | 2185 class PatchingAssembler : public Assembler { |
| 2191 public: | 2186 public: |
| 2192 // Create an Assembler with a buffer starting at 'start'. | 2187 // Create an Assembler with a buffer starting at 'start'. |
| 2193 // The buffer size is | 2188 // The buffer size is |
| 2194 // size of instructions to patch + kGap | 2189 // size of instructions to patch + kGap |
| 2195 // Where kGap is the distance from which the Assembler tries to grow the | 2190 // Where kGap is the distance from which the Assembler tries to grow the |
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| 2233 public: | 2228 public: |
| 2234 explicit EnsureSpace(Assembler* assembler) { | 2229 explicit EnsureSpace(Assembler* assembler) { |
| 2235 assembler->CheckBufferSpace(); | 2230 assembler->CheckBufferSpace(); |
| 2236 } | 2231 } |
| 2237 }; | 2232 }; |
| 2238 | 2233 |
| 2239 } // namespace internal | 2234 } // namespace internal |
| 2240 } // namespace v8 | 2235 } // namespace v8 |
| 2241 | 2236 |
| 2242 #endif // V8_ARM64_ASSEMBLER_ARM64_H_ | 2237 #endif // V8_ARM64_ASSEMBLER_ARM64_H_ |
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