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"
19 // HwModeId -> list of predicates (definition)
25 struct CodeGenHwModes;
35 HwModeSelect(Record *R, CodeGenHwModes &CGH);
36 typedef std::pair<unsigned, Record*> PairType;
37 std::vector<PairType> Items;
41 struct CodeGenHwModes {
42 enum : unsigned { DefaultMode = 0 };
43 static StringRef DefaultModeName;
45 CodeGenHwModes(RecordKeeper &R);
46 unsigned getHwModeId(StringRef Name) const;
47 const HwMode &getMode(unsigned Id) const {
48 assert(Id != 0 && "Mode id of 0 is reserved for the default mode");
51 const HwModeSelect &getHwModeSelect(Record *R) const;
52 unsigned getNumModeIds() const { return Modes.size()+1; }
56 RecordKeeper &Records;
57 StringMap<unsigned> ModeIds; // HwMode (string) -> HwModeId
58 std::vector<HwMode> Modes;
59 std::map<Record*,HwModeSelect> ModeSelects;
63 #endif // LLVM_UTILS_TABLEGEN_CODEGENHWMODES_H