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| Rev | Author | Line No. | Line |
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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 */ |