1 //===-- llvm/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_AUTOUPGRADE_H
15 #define LLVM_AUTOUPGRADE_H
27 /// This is a more granular function that simply checks an intrinsic function
28 /// for upgrading, and returns true if it requires upgrading. It may return
29 /// null in NewFn if the all calls to the original intrinsic function
30 /// should be transformed to non-function-call instructions.
31 bool UpgradeIntrinsicFunction(Function *F, Function *&NewFn);
33 /// This is the complement to the above, replacing a specific call to an
34 /// intrinsic function with a call to the specified new function.
35 void UpgradeIntrinsicCall(CallInst *CI, Function *NewFn);
37 /// This is an auto-upgrade hook for any old intrinsic function syntaxes
38 /// which need to have both the function updated as well as all calls updated
39 /// to the new function. This should only be run in a post-processing fashion
40 /// so that it can update all calls to the old function.
41 void UpgradeCallsToIntrinsic(Function* F);
43 /// This checks for global variables which should be upgraded. It returns true
44 /// if it requires upgrading.
45 bool UpgradeGlobalVariable(GlobalVariable *GV);
47 /// If the TBAA tag for the given instruction uses the scalar TBAA format,
48 /// we upgrade it to the struct-path aware TBAA format.
49 void UpgradeInstWithTBAATag(Instruction *I);
51 /// This is an auto-upgrade for bitcast between pointers with different
52 /// address spaces: the instruction is replaced by a pair ptrtoint+inttoptr.
53 Instruction *UpgradeBitCastInst(unsigned Opc, Value *V, Type *DestTy,
56 /// This is an auto-upgrade for bitcast constant expression between pointers
57 /// with different address spaces: the instruction is replaced by a pair
58 /// ptrtoint+inttoptr.
59 Value *UpgradeBitCastExpr(unsigned Opc, Constant *C, Type *DestTy);
61 /// Check the debug info version number, if it is out-dated, drop the debug
62 /// info. Return true if module is modified.
63 bool UpgradeDebugInfo(Module &M);
64 } // End llvm namespace