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58 lines
2.0 KiB
C++
58 lines
2.0 KiB
C++
// WebAssemblyDebugValueManager.h - WebAssembly DebugValue Manager -*- C++ -*-//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// This file contains the declaration of the WebAssembly-specific
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/// manager for DebugValues associated with the specific MachineInstr.
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/// This pass currently does not handle DBG_VALUE_LISTs; they are assumed to
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/// have been set to undef in NullifyDebugValueLists pass.
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/// TODO Handle DBG_VALUE_LIST
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYDEBUGVALUEMANAGER_H
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#define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYDEBUGVALUEMANAGER_H
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/CodeGen/Register.h"
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namespace llvm {
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class MachineInstr;
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class WebAssemblyDebugValueManager {
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MachineInstr *Def;
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SmallVector<MachineInstr *, 1> DbgValues;
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Register CurrentReg;
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SmallVector<MachineInstr *, 1>
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getSinkableDebugValues(MachineInstr *Insert) const;
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bool isInsertSamePlace(MachineInstr *Insert) const;
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public:
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WebAssemblyDebugValueManager(MachineInstr *Def);
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// Sink 'Def', and also sink its eligible DBG_VALUEs to the place before
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// 'Insert'. Convert the original DBG_VALUEs into undefs.
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void sink(MachineInstr *Insert);
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// Clone 'Def' (optionally), and also clone its eligible DBG_VALUEs to the
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// place before 'Insert'.
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void cloneSink(MachineInstr *Insert, Register NewReg = Register(),
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bool CloneDef = true) const;
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// Update the register for Def and DBG_VALUEs.
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void updateReg(Register Reg);
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// Replace the current register in DBG_VALUEs with the given LocalId target
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// index.
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void replaceWithLocal(unsigned LocalId);
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// Remove Def, and set its DBG_VALUEs to undef.
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void removeDef();
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};
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} // end namespace llvm
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#endif
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