1 //===--- CodeGenHwModes.h ---------------------------------------*- C++ -*-===//
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
7 //===----------------------------------------------------------------------===//
8 // Classes to parse and store HW mode information for instruction selection.
9 //===----------------------------------------------------------------------===//
11 #ifndef LLVM_UTILS_TABLEGEN_CODEGENHWMODES_H
12 #define LLVM_UTILS_TABLEGEN_CODEGENHWMODES_H
14 #include "llvm/ADT/StringMap.h"
20 // HwModeId -> list of predicates (definition)
26 struct CodeGenHwModes;
36 HwModeSelect(Record *R, CodeGenHwModes &CGH);
37 typedef std::pair<unsigned, Record*> PairType;
38 std::vector<PairType> Items;
42 struct CodeGenHwModes {
43 enum : unsigned { DefaultMode = 0 };
44 static StringRef DefaultModeName;
46 CodeGenHwModes(RecordKeeper &R);
47 unsigned getHwModeId(StringRef Name) const;
48 const HwMode &getMode(unsigned Id) const {
49 assert(Id != 0 && "Mode id of 0 is reserved for the default mode");
52 const HwModeSelect &getHwModeSelect(Record *R) const;
53 unsigned getNumModeIds() const { return Modes.size()+1; }
57 RecordKeeper &Records;
58 StringMap<unsigned> ModeIds; // HwMode (string) -> HwModeId
59 std::vector<HwMode> Modes;
60 std::map<Record*,HwModeSelect> ModeSelects;
64 #endif // LLVM_UTILS_TABLEGEN_CODEGENHWMODES_H