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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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