| 1 | //===- CalledValuePropagation.h - Propagate called values -------*- 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 file implements a transformation that attaches !callees metadata to |
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| 10 | // indirect call sites. For a given call site, the metadata, if present, |
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| 11 | // indicates the set of functions the call site could possibly target at |
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| 12 | // run-time. This metadata is added to indirect call sites when the set of |
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| 13 | // possible targets can be determined by analysis and is known to be small. The |
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| 14 | // analysis driving the transformation is similar to constant propagation and |
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| 15 | // makes uses of the generic sparse propagation solver. |
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| 16 | // |
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| 17 | //===----------------------------------------------------------------------===// |
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| 18 | |
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| 19 | #ifndef LLVM_TRANSFORMS_IPO_CALLEDVALUEPROPAGATION_H |
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| 20 | #define LLVM_TRANSFORMS_IPO_CALLEDVALUEPROPAGATION_H |
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| 21 | |
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| 22 | #include "llvm/IR/PassManager.h" |
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| 23 | |
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| 24 | namespace llvm { |
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| 25 | |
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| 26 | class CalledValuePropagationPass |
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| 27 | : public PassInfoMixin<CalledValuePropagationPass> { |
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| 28 | public: |
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| 29 | PreservedAnalyses run(Module &M, ModuleAnalysisManager &); |
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| 30 | }; |
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| 31 | } // namespace llvm |
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| 32 | |
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| 33 | #endif // LLVM_TRANSFORMS_IPO_CALLEDVALUEPROPAGATION_H |
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| 34 | |
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