1 //===- LiveDebugValues.cpp - Tracking Debug Value MIs ---------*- 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 #ifndef LLVM_LIB_CODEGEN_LIVEDEBUGVALUES_LIVEDEBUGVALUES_H 10 #define LLVM_LIB_CODEGEN_LIVEDEBUGVALUES_LIVEDEBUGVALUES_H 11 12 #include "llvm/CodeGen/MachineDominators.h" 13 #include "llvm/CodeGen/MachineFunction.h" 14 #include "llvm/CodeGen/TargetPassConfig.h" 15 #include "llvm/ADT/Triple.h" 16 17 namespace llvm { 18 19 // Inline namespace for types / symbols shared between different 20 // LiveDebugValues implementations. 21 inline namespace SharedLiveDebugValues { 22 23 // Expose a base class for LiveDebugValues interfaces to inherit from. This 24 // allows the generic LiveDebugValues pass handles to call into the 25 // implementation. 26 class LDVImpl { 27 public: 28 virtual bool ExtendRanges(MachineFunction &MF, MachineDominatorTree *DomTree, 29 TargetPassConfig *TPC, unsigned InputBBLimit, 30 unsigned InputDbgValLimit) = 0; 31 virtual ~LDVImpl() {} 32 }; 33 34 } // namespace SharedLiveDebugValues 35 36 // Factory functions for LiveDebugValues implementations. 37 extern LDVImpl *makeVarLocBasedLiveDebugValues(); 38 extern LDVImpl *makeInstrRefBasedLiveDebugValues(); 39 40 extern bool debuginfoShouldUseDebugInstrRef(const Triple &T); 41 42 } // namespace llvm 43 44 #endif // LLVM_LIB_CODEGEN_LIVEDEBUGVALUES_LIVEDEBUGVALUES_H 45