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//=-- HexagonMCShuffler.h ---------------------------------------------------=//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This declares the shuffling of insns inside a bundle according to the
// packet formation rules of the Hexagon ISA.
//
//===----------------------------------------------------------------------===//
#ifndef HEXAGONMCSHUFFLER_H
#define HEXAGONMCSHUFFLER_H
#include "MCTargetDesc/HexagonShuffler.h"
namespace llvm {
class MCInst;
// Insn bundle shuffler.
class HexagonMCShuffler : public HexagonShuffler {
bool immext_present;
bool duplex_present;
public:
HexagonMCShuffler(MCInstrInfo const &MCII, MCSubtargetInfo const &STI,
MCInst &MCB)
: HexagonShuffler(MCII, STI) {
init(MCB);
};
HexagonMCShuffler(MCInstrInfo const &MCII, MCSubtargetInfo const &STI,
MCInst &MCB, const MCInst *AddMI,
bool bInsertAtFront = false)
: HexagonShuffler(MCII, STI) {
init(MCB, AddMI, bInsertAtFront);
};
// Copy reordered bundle to another.
void copyTo(MCInst &MCB);
// Reorder and copy result to another.
bool reshuffleTo(MCInst &MCB);
bool immextPresent() const { return immext_present; };
bool duplexPresent() const { return duplex_present; };
private:
void init(MCInst &MCB);
void init(MCInst &MCB, const MCInst *AddMI, bool bInsertAtFront = false);
};
// Invocation of the shuffler.
bool HexagonMCShuffle(MCInstrInfo const &MCII, MCSubtargetInfo const &STI,
MCInst &);
bool HexagonMCShuffle(MCInstrInfo const &MCII, MCSubtargetInfo const &STI,
MCInst &, const MCInst *, int);
unsigned HexagonMCShuffle(MCInstrInfo const &MCII, MCSubtargetInfo const &STI,
MCContext &Context, MCInst &,
SmallVector<DuplexCandidate, 8>);
}
#endif // HEXAGONMCSHUFFLER_H
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