- //===- llvm/IR/StructuralHash.h - IR Hash for expensive checks --*- C++ -*-===// 
- // 
- // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 
- // See https://llvm.org/LICENSE.txt for license information. 
- // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 
- // 
- //===----------------------------------------------------------------------===// 
- // 
- // This file provides hashing of the LLVM IR structure to be used to check 
- // Passes modification status. 
- // 
- //===----------------------------------------------------------------------===// 
-   
- #ifndef LLVM_IR_STRUCTURALHASH_H 
- #define LLVM_IR_STRUCTURALHASH_H 
-   
- #ifdef EXPENSIVE_CHECKS 
-   
- #include <cstdint> 
-   
- // This header is only meant to be used when -DEXPENSIVE_CHECKS is set 
- namespace llvm { 
-   
- class Function; 
- class Module; 
-   
- uint64_t StructuralHash(const Function &F); 
- uint64_t StructuralHash(const Module &M); 
-   
- } // end namespace llvm 
-   
- #endif 
-   
- #endif // LLVM_IR_STRUCTURALHASH_H 
-