1 //===- llvm/Transforms/Utils/UnrollLoop.h - Unrolling utilities -*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file defines some loop unrolling utilities. It does not define any 11 // actual pass or policy, but provides a single function to perform loop 12 // unrolling. 13 // 14 //===----------------------------------------------------------------------===// 15 16 #ifndef LLVM_TRANSFORMS_UTILS_UNROLLLOOP_H 17 #define LLVM_TRANSFORMS_UTILS_UNROLLLOOP_H 18 19 #include "llvm/ADT/StringRef.h" 20 21 namespace llvm { 22 23 class AssumptionCache; 24 class Loop; 25 class LoopInfo; 26 class LPPassManager; 27 class MDNode; 28 class Pass; 29 30 bool UnrollLoop(Loop *L, unsigned Count, unsigned TripCount, bool AllowRuntime, 31 bool AllowExpensiveTripCount, unsigned TripMultiple, 32 LoopInfo *LI, Pass *PP, LPPassManager *LPM, 33 AssumptionCache *AC); 34 35 bool UnrollRuntimeLoopProlog(Loop *L, unsigned Count, 36 bool AllowExpensiveTripCount, LoopInfo *LI, 37 LPPassManager *LPM); 38 39 MDNode *GetUnrollMetadata(MDNode *LoopID, StringRef Name); 40 } 41 42 #endif 43