| 1 | //===- GlobalSplit.h - global variable splitter -----------------*- 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 | // This pass uses inrange annotations on GEP indices to split globals where |
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| 10 | // beneficial. Clang currently attaches these annotations to references to |
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| 11 | // virtual table globals under the Itanium ABI for the benefit of the |
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| 12 | // whole-program virtual call optimization and control flow integrity passes. |
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| 13 | // |
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| 14 | //===----------------------------------------------------------------------===// |
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| 15 | |
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| 16 | #ifndef LLVM_TRANSFORMS_IPO_GLOBALSPLIT_H |
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| 17 | #define LLVM_TRANSFORMS_IPO_GLOBALSPLIT_H |
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| 18 | |
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| 19 | #include "llvm/IR/PassManager.h" |
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| 20 | |
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| 21 | namespace llvm { |
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| 22 | |
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| 23 | class Module; |
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| 24 | |
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| 25 | /// Pass to perform split of global variables. |
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| 26 | class GlobalSplitPass : public PassInfoMixin<GlobalSplitPass> { |
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| 27 | public: |
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| 28 | PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM); |
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| 29 | }; |
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| 30 | |
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| 31 | } // end namespace llvm |
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| 32 | |
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| 33 | #endif // LLVM_TRANSFORMS_IPO_GLOBALSPLIT_H |
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| 34 | |
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