LLVM  3.7.0
AutoUpgrade.h
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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
void UpgradeMDStringConstant(std::string &String)
Upgrade a metadata string constant in place.
F(f)
void UpgradeIntrinsicCall(CallInst *CI, Function *NewFn)
This is the complement to the above, replacing a specific call to an intrinsic function with a call t...
void UpgradeCallsToIntrinsic(Function *F)
This is an auto-upgrade hook for any old intrinsic function syntaxes which need to have both the func...
bool UpgradeIntrinsicFunction(Function *F, Function *&NewFn)
This is a more granular function that simply checks an intrinsic function for upgrading, and returns true if it requires upgrading.
bool UpgradeDebugInfo(Module &M)
Check the debug info version number, if it is out-dated, drop the debug info.
Instruction * UpgradeBitCastInst(unsigned Opc, Value *V, Type *DestTy, Instruction *&Temp)
This is an auto-upgrade for bitcast between pointers with different address spaces: the instruction i...
bool UpgradeGlobalVariable(GlobalVariable *GV)
This checks for global variables which should be upgraded.
#define I(x, y, z)
Definition: MD5.cpp:54
void UpgradeInstWithTBAATag(Instruction *I)
If the TBAA tag for the given instruction uses the scalar TBAA format, we upgrade it to the struct-pa...
C - The default llvm calling convention, compatible with C.
Definition: CallingConv.h:34
Value * UpgradeBitCastExpr(unsigned Opc, Constant *C, Type *DestTy)
This is an auto-upgrade for bitcast constant expression between pointers with different address space...