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  1. //===- CalledValuePropagation.h - Propagate called values -------*- C++ -*-===//
  2. //
  3. // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  4. // See https://llvm.org/LICENSE.txt for license information.
  5. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  6. //
  7. //===----------------------------------------------------------------------===//
  8. //
  9. // This file implements a transformation that attaches !callees metadata to
  10. // indirect call sites. For a given call site, the metadata, if present,
  11. // indicates the set of functions the call site could possibly target at
  12. // run-time. This metadata is added to indirect call sites when the set of
  13. // possible targets can be determined by analysis and is known to be small. The
  14. // analysis driving the transformation is similar to constant propagation and
  15. // makes uses of the generic sparse propagation solver.
  16. //
  17. //===----------------------------------------------------------------------===//
  18.  
  19. #ifndef LLVM_TRANSFORMS_IPO_CALLEDVALUEPROPAGATION_H
  20. #define LLVM_TRANSFORMS_IPO_CALLEDVALUEPROPAGATION_H
  21.  
  22. #include "llvm/IR/PassManager.h"
  23.  
  24. namespace llvm {
  25.  
  26. class CalledValuePropagationPass
  27.     : public PassInfoMixin<CalledValuePropagationPass> {
  28. public:
  29.   PreservedAnalyses run(Module &M, ModuleAnalysisManager &);
  30. };
  31. } // namespace llvm
  32.  
  33. #endif // LLVM_TRANSFORMS_IPO_CALLEDVALUEPROPAGATION_H
  34.