1 //===-- AllocaHoisting.h - Hosist allocas to the entry block ----*- 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 // Hoist the alloca instructions in the non-entry blocks to the entry blocks. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef NVPTX_ALLOCA_HOISTING_H_ 15 #define NVPTX_ALLOCA_HOISTING_H_ 16 17 #include "llvm/CodeGen/MachineFunctionAnalysis.h" 18 #include "llvm/IR/DataLayout.h" 19 #include "llvm/Pass.h" 20 21 namespace llvm { 22 23 class FunctionPass; 24 class Function; 25 26 // Hoisting the alloca instructions in the non-entry blocks to the entry 27 // block. 28 class NVPTXAllocaHoisting : public FunctionPass { 29 public: 30 static char ID; // Pass ID 31 NVPTXAllocaHoisting() : FunctionPass(ID) {} 32 33 void getAnalysisUsage(AnalysisUsage &AU) const { 34 AU.addRequired<DataLayout>(); 35 AU.addPreserved<MachineFunctionAnalysis>(); 36 } 37 38 virtual const char *getPassName() const { 39 return "NVPTX specific alloca hoisting"; 40 } 41 42 virtual bool runOnFunction(Function &function); 43 }; 44 45 extern FunctionPass *createAllocaHoisting(); 46 47 } // end namespace llvm 48 49 #endif // NVPTX_ALLOCA_HOISTING_H_ 50
