| // WebAssemblyDebugValueManager.h - WebAssembly DebugValue Manager -*- 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 |
| // |
| //===----------------------------------------------------------------------===// |
| /// |
| /// \file |
| /// This file contains the declaration of the WebAssembly-specific |
| /// manager for DebugValues associated with the specific MachineInstr. |
| /// This pass currently does not handle DBG_VALUE_LISTs; they are assumed to |
| /// have been set to undef in NullifyDebugValueLists pass. |
| /// TODO Handle DBG_VALUE_LIST |
| /// |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYDEBUGVALUEMANAGER_H |
| #define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYDEBUGVALUEMANAGER_H |
| |
| #include "llvm/ADT/SmallVector.h" |
| #include "llvm/CodeGen/Register.h" |
| |
| namespace llvm { |
| |
| class MachineInstr; |
| |
| class WebAssemblyDebugValueManager { |
| MachineInstr *Def; |
| SmallVector<MachineInstr *, 1> DbgValues; |
| Register CurrentReg; |
| SmallVector<MachineInstr *, 1> |
| getSinkableDebugValues(MachineInstr *Insert) const; |
| bool isInsertSamePlace(MachineInstr *Insert) const; |
| |
| public: |
| WebAssemblyDebugValueManager(MachineInstr *Def); |
| |
| // Sink 'Def', and also sink its eligible DBG_VALUEs to the place before |
| // 'Insert'. Convert the original DBG_VALUEs into undefs. |
| void sink(MachineInstr *Insert); |
| // Clone 'Def' (optionally), and also clone its eligible DBG_VALUEs to the |
| // place before 'Insert'. |
| void cloneSink(MachineInstr *Insert, Register NewReg = Register(), |
| bool CloneDef = true) const; |
| // Update the register for Def and DBG_VALUEs. |
| void updateReg(Register Reg); |
| // Replace the current register in DBG_VALUEs with the given LocalId target |
| // index. |
| void replaceWithLocal(unsigned LocalId); |
| // Remove Def, and set its DBG_VALUEs to undef. |
| void removeDef(); |
| }; |
| |
| } // end namespace llvm |
| |
| #endif |