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14 | pmbaty | 1 | //===------ DeLICM.h --------------------------------------------*- C++ -*-===// |
2 | // |
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3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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4 | // See https://llvm.org/LICENSE.txt for license information. |
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5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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6 | // |
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7 | //===----------------------------------------------------------------------===// |
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8 | // |
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9 | // Undo the effect of Loop Invariant Code Motion (LICM) and |
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10 | // GVN Partial Redundancy Elimination (PRE) on SCoP-level. |
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11 | // |
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12 | // Namely, remove register/scalar dependencies by mapping them back to array |
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13 | // elements. |
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14 | // |
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15 | //===----------------------------------------------------------------------===// |
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16 | |||
17 | #ifndef POLLY_DELICM_H |
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18 | #define POLLY_DELICM_H |
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19 | |||
20 | #include "polly/ScopPass.h" |
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21 | #include "isl/isl-noexceptions.h" |
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22 | |||
23 | namespace llvm { |
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24 | class PassRegistry; |
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25 | class Pass; |
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26 | class raw_ostream; |
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27 | } // namespace llvm |
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28 | |||
29 | namespace polly { |
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30 | /// Create a new DeLICM pass instance. |
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31 | llvm::Pass *createDeLICMWrapperPass(); |
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32 | llvm::Pass *createDeLICMPrinterLegacyPass(llvm::raw_ostream &OS); |
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33 | |||
34 | struct DeLICMPass final : llvm::PassInfoMixin<DeLICMPass> { |
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35 | DeLICMPass() {} |
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36 | |||
37 | llvm::PreservedAnalyses run(Scop &S, ScopAnalysisManager &SAM, |
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38 | ScopStandardAnalysisResults &SAR, SPMUpdater &U); |
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39 | }; |
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40 | |||
41 | struct DeLICMPrinterPass final : llvm::PassInfoMixin<DeLICMPrinterPass> { |
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42 | DeLICMPrinterPass(raw_ostream &OS) : OS(OS) {} |
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43 | |||
44 | PreservedAnalyses run(Scop &S, ScopAnalysisManager &, |
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45 | ScopStandardAnalysisResults &SAR, SPMUpdater &); |
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46 | |||
47 | private: |
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48 | llvm::raw_ostream &OS; |
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49 | }; |
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50 | |||
51 | /// Determine whether two lifetimes are conflicting. |
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52 | /// |
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53 | /// Used by unittesting. |
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54 | bool isConflicting(isl::union_set ExistingOccupied, |
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55 | isl::union_set ExistingUnused, isl::union_map ExistingKnown, |
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56 | isl::union_map ExistingWrites, |
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57 | isl::union_set ProposedOccupied, |
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58 | isl::union_set ProposedUnused, isl::union_map ProposedKnown, |
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59 | isl::union_map ProposedWrites, |
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60 | llvm::raw_ostream *OS = nullptr, unsigned Indent = 0); |
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61 | |||
62 | } // namespace polly |
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63 | |||
64 | namespace llvm { |
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65 | void initializeDeLICMWrapperPassPass(llvm::PassRegistry &); |
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66 | void initializeDeLICMPrinterLegacyPassPass(llvm::PassRegistry &); |
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67 | } // namespace llvm |
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68 | |||
69 | #endif /* POLLY_DELICM_H */ |