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File indexing completed on 2026-05-10 08:43:28
0001 //===- CSEConfigBase.h - A CSEConfig interface ------------------*- C++ -*-===// 0002 // 0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 0004 // See https://llvm.org/LICENSE.txt for license information. 0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 0006 // 0007 //===----------------------------------------------------------------------===// 0008 0009 #ifndef LLVM_CODEGEN_CSECONFIGBASE_H 0010 #define LLVM_CODEGEN_CSECONFIGBASE_H 0011 0012 namespace llvm { 0013 // Class representing some configuration that can be done during GlobalISel's 0014 // CSEInfo analysis. We define it here because TargetPassConfig can't depend on 0015 // the GlobalISel library, and so we use this in the interface between them 0016 // so that the derived classes in GISel can reference generic opcodes. 0017 class CSEConfigBase { 0018 public: 0019 virtual ~CSEConfigBase() = default; 0020 // Hook for defining which Generic instructions should be CSEd. 0021 // GISelCSEInfo currently only calls this hook when dealing with generic 0022 // opcodes. 0023 virtual bool shouldCSEOpc(unsigned Opc) { return false; } 0024 }; 0025 0026 } // namespace llvm 0027 0028 #endif // LLVM_CODEGEN_CSECONFIGBASE_H
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