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