1 //===- llvm/Transforms/Utils/LowerMemintrinsics.h ---------------*- 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 // Lower memset, memcpy, memmov intrinsics to loops (e.g. for targets without 11 // library support). 12 // 13 //===----------------------------------------------------------------------===// 14 15 #ifndef LLVM_TRANSFORMS_UTILS_LOWERMEMINTRINSICS_H 16 #define LLVM_TRANSFORMS_UTILS_LOWERMEMINTRINSICS_H 17 18 namespace llvm { 19 20 class Instruction; 21 class MemCpyInst; 22 class MemMoveInst; 23 class MemSetInst; 24 class Value; 25 26 /// Emit a loop implementing the semantics of llvm.memcpy with the equivalent 27 /// arguments at \p InsertBefore. 28 void createMemCpyLoop(Instruction *InsertBefore, 29 Value *SrcAddr, Value *DstAddr, Value *CopyLen, 30 unsigned SrcAlign, unsigned DestAlign, 31 bool SrcIsVolatile, bool DstIsVolatile); 32 33 /// Expand \p MemCpy as a loop. \p MemCpy is not deleted. 34 void expandMemCpyAsLoop(MemCpyInst *MemCpy); 35 36 /// Expand \p MemMove as a loop. \p MemMove is not deleted. 37 void expandMemMoveAsLoop(MemMoveInst *MemMove); 38 39 /// Expand \p MemSet as a loop. \p MemSet is not deleted. 40 void expandMemSetAsLoop(MemSetInst *MemSet); 41 42 } // End llvm namespace 43 44 #endif 45
