1 //===- HexagonMCShuffler.h --------------------------------------*- C++ -*-===// 2 // 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 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This declares the shuffling of insns inside a bundle according to the 10 // packet formation rules of the Hexagon ISA. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_LIB_TARGET_HEXAGON_MCTARGETDESC_HEXAGONMCSHUFFLER_H 15 #define LLVM_LIB_TARGET_HEXAGON_MCTARGETDESC_HEXAGONMCSHUFFLER_H 16 17 #include "MCTargetDesc/HexagonMCInstrInfo.h" 18 #include "MCTargetDesc/HexagonShuffler.h" 19 #include "llvm/ADT/SmallVector.h" 20 21 namespace llvm { 22 23 class MCContext; 24 class MCInst; 25 class MCInstrInfo; 26 class MCSubtargetInfo; 27 28 // Insn bundle shuffler. 29 class HexagonMCShuffler : public HexagonShuffler { 30 public: 31 HexagonMCShuffler(MCContext &Context, bool Fatal, MCInstrInfo const &MCII, 32 MCSubtargetInfo const &STI, MCInst &MCB) 33 : HexagonShuffler(Context, Fatal, MCII, STI) { 34 init(MCB); 35 } 36 37 HexagonMCShuffler(MCContext &Context, bool Fatal, MCInstrInfo const &MCII, 38 MCSubtargetInfo const &STI, MCInst &MCB, 39 MCInst const &AddMI, bool InsertAtFront) 40 : HexagonShuffler(Context, Fatal, MCII, STI) { 41 init(MCB, AddMI, InsertAtFront); 42 } 43 44 // Copy reordered bundle to another. 45 void copyTo(MCInst &MCB); 46 47 // Reorder and copy result to another. 48 bool reshuffleTo(MCInst &MCB); 49 50 private: 51 void init(MCInst &MCB); 52 void init(MCInst &MCB, MCInst const &AddMI, bool InsertAtFront); 53 }; 54 55 // Invocation of the shuffler. 56 bool HexagonMCShuffle(MCContext &Context, bool Fatal, MCInstrInfo const &MCII, 57 MCSubtargetInfo const &STI, MCInst &MCB); 58 bool HexagonMCShuffle(MCContext &Context, MCInstrInfo const &MCII, 59 MCSubtargetInfo const &STI, MCInst &MCB, 60 MCInst const &AddMI, int fixupCount); 61 bool HexagonMCShuffle(MCContext &Context, MCInstrInfo const &MCII, 62 MCSubtargetInfo const &STI, MCInst &MCB, 63 SmallVector<DuplexCandidate, 8> possibleDuplexes); 64 65 } // end namespace llvm 66 67 #endif // LLVM_LIB_TARGET_HEXAGON_MCTARGETDESC_HEXAGONMCSHUFFLER_H 68