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ae65e281f3
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
64 lines
1.8 KiB
C++
64 lines
1.8 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_CODEGENHWMODES_H
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#define LLVM_UTILS_TABLEGEN_CODEGENHWMODES_H
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#include "llvm/ADT/StringMap.h"
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#include <map>
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#include <string>
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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(Record *R);
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StringRef Name;
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std::string Features;
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void dump() const;
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};
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struct HwModeSelect {
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HwModeSelect(Record *R, CodeGenHwModes &CGH);
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typedef std::pair<unsigned, 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(RecordKeeper &R);
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unsigned getHwModeId(StringRef Name) 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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const HwModeSelect &getHwModeSelect(Record *R) const;
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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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RecordKeeper &Records;
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StringMap<unsigned> ModeIds; // HwMode (string) -> HwModeId
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std::vector<HwMode> Modes;
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std::map<Record*,HwModeSelect> ModeSelects;
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};
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}
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#endif // LLVM_UTILS_TABLEGEN_CODEGENHWMODES_H
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