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 const std::function<bool(Instruction &)> MaterializableCallback; 26 27 CoroSplitPass(bool OptimizeFrame = false); 28 CoroSplitPass(std::function<bool(Instruction &)> MaterializableCallback, 29 bool OptimizeFrame = false) MaterializableCallbackCoroSplitPass30 : MaterializableCallback(MaterializableCallback), 31 OptimizeFrame(OptimizeFrame) {} 32 33 PreservedAnalyses run(LazyCallGraph::SCC &C, CGSCCAnalysisManager &AM, 34 LazyCallGraph &CG, CGSCCUpdateResult &UR); isRequiredCoroSplitPass35 static bool isRequired() { return true; } 36 37 // Would be true if the Optimization level isn't O0. 38 bool OptimizeFrame; 39 }; 40 } // end namespace llvm 41 42 #endif // LLVM_TRANSFORMS_COROUTINES_COROSPLIT_H 43