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  1. //===- CoroSplit.h - Converts a coroutine into a state machine -*- 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. // \file
  10. // This file declares the pass that builds the coroutine frame and outlines
  11. // the resume and destroy parts of the coroutine into separate functions.
  12. //
  13. //===----------------------------------------------------------------------===//
  14.  
  15. #ifndef LLVM_TRANSFORMS_COROUTINES_COROSPLIT_H
  16. #define LLVM_TRANSFORMS_COROUTINES_COROSPLIT_H
  17.  
  18. #include "llvm/Analysis/CGSCCPassManager.h"
  19. #include "llvm/Analysis/LazyCallGraph.h"
  20. #include "llvm/IR/PassManager.h"
  21.  
  22. namespace llvm {
  23.  
  24. struct CoroSplitPass : PassInfoMixin<CoroSplitPass> {
  25.   CoroSplitPass(bool OptimizeFrame = false) : OptimizeFrame(OptimizeFrame) {}
  26.  
  27.   PreservedAnalyses run(LazyCallGraph::SCC &C, CGSCCAnalysisManager &AM,
  28.                         LazyCallGraph &CG, CGSCCUpdateResult &UR);
  29.   static bool isRequired() { return true; }
  30.  
  31.   // Would be true if the Optimization level isn't O0.
  32.   bool OptimizeFrame;
  33. };
  34. } // end namespace llvm
  35.  
  36. #endif // LLVM_TRANSFORMS_COROUTINES_COROSPLIT_H
  37.