| 1 | //==- MemProfContextDisambiguation.h - Context Disambiguation ----*- C++ -*-==// |
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| 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 | // Implements support for context disambiguation of allocation calls for profile |
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| 10 | // guided heap optimization using memprof metadata. See implementation file for |
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| 11 | // details. |
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| 12 | // |
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| 13 | //===----------------------------------------------------------------------===// |
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| 14 | |
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| 15 | #ifndef LLVM_TRANSFORMS_IPO_MEMPROF_CONTEXT_DISAMBIGUATION_H |
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| 16 | #define LLVM_TRANSFORMS_IPO_MEMPROF_CONTEXT_DISAMBIGUATION_H |
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| 17 | |
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| 18 | #include "llvm/IR/GlobalValue.h" |
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| 19 | #include "llvm/IR/ModuleSummaryIndex.h" |
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| 20 | #include "llvm/IR/PassManager.h" |
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| 21 | #include <functional> |
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| 22 | |
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| 23 | namespace llvm { |
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| 24 | class GlobalValueSummary; |
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| 25 | class Module; |
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| 26 | class ; |
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| 27 | |
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| 28 | class MemProfContextDisambiguation |
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| 29 | : public PassInfoMixin<MemProfContextDisambiguation> { |
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| 30 | /// Run the context disambiguator on \p M, returns true if any changes made. |
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| 31 | bool ( |
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| 32 | Module &M, |
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| 33 | function_ref<OptimizationRemarkEmitter &(Function *)> OREGetter); |
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| 34 | |
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| 35 | /// In the ThinLTO backend, apply the cloning decisions in ImportSummary to |
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| 36 | /// the IR. |
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| 37 | bool applyImport(Module &M); |
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| 38 | |
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| 39 | /// Import summary containing cloning decisions for the ThinLTO backend. |
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| 40 | const ModuleSummaryIndex *ImportSummary; |
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| 41 | |
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| 42 | // Owns the import summary specified by internal options for testing the |
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| 43 | // ThinLTO backend via opt (to simulate distributed ThinLTO). |
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| 44 | std::unique_ptr<ModuleSummaryIndex> ImportSummaryForTesting; |
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| 45 | |
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| 46 | public: |
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| 47 | MemProfContextDisambiguation(const ModuleSummaryIndex *Summary = nullptr); |
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| 48 | |
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| 49 | PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM); |
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| 50 | |
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| 51 | void run(ModuleSummaryIndex &Index, |
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| 52 | function_ref<bool(GlobalValue::GUID, const GlobalValueSummary *)> |
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| 53 | isPrevailing); |
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| 54 | }; |
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| 55 | } // end namespace llvm |
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| 56 | |
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| 57 | #endif // LLVM_TRANSFORMS_IPO_MEMPROF_CONTEXT_DISAMBIGUATION_H |
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| 58 | |
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