| 1 | //===- HexagonMCShuffler.h --------------------------------------*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // This declares the shuffling of insns inside a bundle according to the |
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| 10 | // packet formation rules of the Hexagon ISA. |
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| 11 | // |
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| 12 | //===----------------------------------------------------------------------===// |
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| 13 | |
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| 14 | #ifndef LLVM_LIB_TARGET_HEXAGON_MCTARGETDESC_HEXAGONMCSHUFFLER_H |
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| 15 | #define LLVM_LIB_TARGET_HEXAGON_MCTARGETDESC_HEXAGONMCSHUFFLER_H |
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| 16 | |
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| 17 | #include "MCTargetDesc/HexagonMCInstrInfo.h" |
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| 18 | #include "MCTargetDesc/HexagonShuffler.h" |
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| 19 | #include "llvm/ADT/SmallVector.h" |
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| 20 | |
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| 21 | namespace llvm { |
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| 22 | |
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| 23 | class MCContext; |
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| 24 | class MCInst; |
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| 25 | class MCInstrInfo; |
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| 26 | class MCSubtargetInfo; |
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| 27 | |
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| 28 | // Insn bundle shuffler. |
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| 29 | class HexagonMCShuffler : public HexagonShuffler { |
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| 30 | public: |
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| 31 | HexagonMCShuffler(MCContext &Context, bool ReportErrors, |
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| 32 | MCInstrInfo const &MCII, MCSubtargetInfo const &STI, |
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| 33 | MCInst &MCB) |
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| 34 | : HexagonShuffler(Context, ReportErrors, MCII, STI) { |
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| 35 | init(MCB); |
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| 36 | } |
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| 37 | |
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| 38 | HexagonMCShuffler(MCContext &Context, bool ReportErrors, |
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| 39 | MCInstrInfo const &MCII, MCSubtargetInfo const &STI, |
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| 40 | MCInst &MCB, MCInst const &AddMI, bool InsertAtFront) |
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| 41 | : HexagonShuffler(Context, ReportErrors, MCII, STI) { |
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| 42 | init(MCB, AddMI, InsertAtFront); |
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| 43 | } |
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| 44 | |
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| 45 | // Copy reordered bundle to another. |
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| 46 | void copyTo(MCInst &MCB); |
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| 47 | |
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| 48 | // Reorder and copy result to another. |
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| 49 | bool reshuffleTo(MCInst &MCB); |
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| 50 | |
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| 51 | private: |
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| 52 | void init(MCInst &MCB); |
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| 53 | void init(MCInst &MCB, MCInst const &AddMI, bool InsertAtFront); |
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| 54 | }; |
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| 55 | |
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| 56 | // Invocation of the shuffler. Returns true if the shuffle succeeded. If |
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| 57 | // true, MCB will contain the newly-shuffled packet. |
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| 58 | bool HexagonMCShuffle(MCContext &Context, bool ReportErrors, |
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| 59 | MCInstrInfo const &MCII, MCSubtargetInfo const &STI, |
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| 60 | MCInst &MCB); |
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| 61 | bool HexagonMCShuffle(MCContext &Context, MCInstrInfo const &MCII, |
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| 62 | MCSubtargetInfo const &STI, MCInst &MCB, |
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| 63 | MCInst const &AddMI, int fixupCount); |
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| 64 | bool HexagonMCShuffle(MCContext &Context, MCInstrInfo const &MCII, |
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| 65 | MCSubtargetInfo const &STI, MCInst &MCB, |
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| 66 | SmallVector<DuplexCandidate, 8> possibleDuplexes); |
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| 67 | |
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| 68 | } // end namespace llvm |
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| 69 | |
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| 70 | #endif // LLVM_LIB_TARGET_HEXAGON_MCTARGETDESC_HEXAGONMCSHUFFLER_H |
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| 71 | |
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