1 //===- LoopSimplifyCFG.cpp - Loop CFG Simplification Pass -------*- 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 the Loop SimplifyCFG Pass. This pass is responsible for 10 // basic loop CFG cleanup, primarily to assist other loop passes. If you 11 // encounter a noncanonical CFG construct that causes another loop pass to 12 // perform suboptimally, this is the place to fix it up. 13 // 14 //===----------------------------------------------------------------------===// 15 16 #ifndef LLVM_TRANSFORMS_SCALAR_LOOPSIMPLIFYCFG_H 17 #define LLVM_TRANSFORMS_SCALAR_LOOPSIMPLIFYCFG_H 18 19 #include "llvm/Analysis/LoopInfo.h" 20 #include "llvm/IR/PassManager.h" 21 #include "llvm/Transforms/Scalar/LoopPassManager.h" 22 23 namespace llvm { 24 25 /// Performs basic CFG simplifications to assist other loop passes. 26 class LoopSimplifyCFGPass : public PassInfoMixin<LoopSimplifyCFGPass> { 27 public: 28 PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM, 29 LoopStandardAnalysisResults &AR, LPMUpdater &U); 30 }; 31 } // end namespace llvm 32 33 #endif // LLVM_TRANSFORMS_SCALAR_LOOPSIMPLIFYCFG_H 34
Indexes created Tue Jun 09 00:24:00 UTC 2026