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985600dcd3
Migrate CodeGenHWModes to use const RecordKeeper and const Record pointers. This is a part of effort to have better const correctness in TableGen backends: https://discourse.llvm.org/t/psa-planned-changes-to-tablegen-getallderiveddefinitions-api-potential-downstream-breakages/81089
76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
//===--- CodeGenHwModes.h ---------------------------------------*- 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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// Classes to parse and store HW mode information for instruction selection.
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_UTILS_TABLEGEN_COMMON_CODEGENHWMODES_H
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#define LLVM_UTILS_TABLEGEN_COMMON_CODEGENHWMODES_H
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/StringRef.h"
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#include <cassert>
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#include <map>
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#include <string>
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#include <utility>
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#include <vector>
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// HwModeId -> list of predicates (definition)
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namespace llvm {
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class Record;
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class RecordKeeper;
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struct CodeGenHwModes;
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struct HwMode {
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HwMode(const Record *R);
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StringRef Name;
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std::string Features;
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std::string Predicates;
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void dump() const;
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};
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struct HwModeSelect {
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HwModeSelect(const Record *R, CodeGenHwModes &CGH);
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typedef std::pair<unsigned, const Record *> PairType;
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std::vector<PairType> Items;
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void dump() const;
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};
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struct CodeGenHwModes {
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enum : unsigned { DefaultMode = 0 };
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static StringRef DefaultModeName;
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CodeGenHwModes(const RecordKeeper &R);
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unsigned getHwModeId(const Record *R) const;
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const HwMode &getMode(unsigned Id) const {
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assert(Id != 0 && "Mode id of 0 is reserved for the default mode");
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return Modes[Id - 1];
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}
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StringRef getModeName(unsigned Id, bool IncludeDefault = false) const {
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if (IncludeDefault && Id == CodeGenHwModes::DefaultMode)
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return DefaultModeName;
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return getMode(Id).Name;
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}
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const HwModeSelect &getHwModeSelect(const Record *R) const;
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const std::map<const Record *, HwModeSelect> &getHwModeSelects() const {
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return ModeSelects;
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}
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unsigned getNumModeIds() const { return Modes.size() + 1; }
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void dump() const;
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private:
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const RecordKeeper &Records;
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DenseMap<const Record *, unsigned> ModeIds; // HwMode Record -> HwModeId
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std::vector<HwMode> Modes;
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std::map<const Record *, HwModeSelect> ModeSelects;
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};
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} // namespace llvm
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#endif // LLVM_UTILS_TABLEGEN_COMMON_CODEGENHWMODES_H
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