1 //===- AutoUpgrade.h - AutoUpgrade Helpers ----------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // These functions are implemented by lib/IR/AutoUpgrade.cpp.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_IR_AUTOUPGRADE_H
15 #define LLVM_IR_AUTOUPGRADE_H
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);
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);
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);
45 /// This checks for global variables which should be upgraded. It returns true
46 /// if it requires upgrading.
47 bool UpgradeGlobalVariable(GlobalVariable *GV);
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);
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,
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);
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);
67 /// Upgrade a metadata string constant in place.
68 void UpgradeMDStringConstant(std::string &String);
69 } // End llvm namespace