- //===- RegAllocCommon.h - Utilities shared between allocators ---*- 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 
- // 
- //===----------------------------------------------------------------------===// 
-   
- #ifndef LLVM_CODEGEN_REGALLOCCOMMON_H 
- #define LLVM_CODEGEN_REGALLOCCOMMON_H 
-   
- #include <functional> 
-   
- namespace llvm { 
-   
- class TargetRegisterClass; 
- class TargetRegisterInfo; 
-   
- typedef std::function<bool(const TargetRegisterInfo &TRI, 
-                            const TargetRegisterClass &RC)> RegClassFilterFunc; 
-   
- /// Default register class filter function for register allocation. All virtual 
- /// registers should be allocated. 
- static inline bool allocateAllRegClasses(const TargetRegisterInfo &, 
-                                          const TargetRegisterClass &) { 
-   return true; 
- } 
-   
- } 
-   
- #endif // LLVM_CODEGEN_REGALLOCCOMMON_H 
-