1 //===- AutoUpgrade.h - AutoUpgrade Helpers ----------------------*- 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 // These functions are implemented by lib/IR/AutoUpgrade.cpp. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_IR_AUTOUPGRADE_H 15 #define LLVM_IR_AUTOUPGRADE_H 16 17 #include <string> 18 19 namespace llvm { 20 class CallInst; 21 class Constant; 22 class Function; 23 class Instruction; 24 class Module; 25 class GlobalVariable; 26 class Type; 27 class Value; 28 29 /// This is a more granular function that simply checks an intrinsic function 30 /// for upgrading, and returns true if it requires upgrading. It may return 31 /// null in NewFn if the all calls to the original intrinsic function 32 /// should be transformed to non-function-call instructions. 33 bool UpgradeIntrinsicFunction(Function *F, Function *&NewFn); 34 35 /// This is the complement to the above, replacing a specific call to an 36 /// intrinsic function with a call to the specified new function. 37 void UpgradeIntrinsicCall(CallInst *CI, Function *NewFn); 38 39 /// This is an auto-upgrade hook for any old intrinsic function syntaxes 40 /// which need to have both the function updated as well as all calls updated 41 /// to the new function. This should only be run in a post-processing fashion 42 /// so that it can update all calls to the old function. 43 void UpgradeCallsToIntrinsic(Function* F); 44 45 /// This checks for global variables which should be upgraded. It returns true 46 /// if it requires upgrading. 47 bool UpgradeGlobalVariable(GlobalVariable *GV); 48 49 /// If the TBAA tag for the given instruction uses the scalar TBAA format, 50 /// we upgrade it to the struct-path aware TBAA format. 51 void UpgradeInstWithTBAATag(Instruction *I); 52 53 /// This is an auto-upgrade for bitcast between pointers with different 54 /// address spaces: the instruction is replaced by a pair ptrtoint+inttoptr. 55 Instruction *UpgradeBitCastInst(unsigned Opc, Value *V, Type *DestTy, 56 Instruction *&Temp); 57 58 /// This is an auto-upgrade for bitcast constant expression between pointers 59 /// with different address spaces: the instruction is replaced by a pair 60 /// ptrtoint+inttoptr. 61 Value *UpgradeBitCastExpr(unsigned Opc, Constant *C, Type *DestTy); 62 63 /// Check the debug info version number, if it is out-dated, drop the debug 64 /// info. Return true if module is modified. 65 bool UpgradeDebugInfo(Module &M); 66 67 /// Upgrade a metadata string constant in place. 68 void UpgradeMDStringConstant(std::string &String); 69 } // End llvm namespace 70 71 #endif 72