1 //===- AddDiscriminators.h --------------------------------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This pass adds DWARF discriminators to the IR. Path discriminators are used
10 // to decide what CFG path was taken inside sub-graphs whose instructions share
11 // the same line and column number information.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #ifndef LLVM_TRANSFORMS_UTILS_ADDDISCRIMINATORS_H
16 #define LLVM_TRANSFORMS_UTILS_ADDDISCRIMINATORS_H
17 
18 #include "llvm/IR/PassManager.h"
19 
20 namespace llvm {
21 
22 class Function;
23 
24 class AddDiscriminatorsPass : public PassInfoMixin<AddDiscriminatorsPass> {
25 public:
26   PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
27   static bool isRequired() { return true; }
28 };
29 
30 } // end namespace llvm
31 
32 #endif // LLVM_TRANSFORMS_UTILS_ADDDISCRIMINATORS_H
33