Target/Hexagon/HexagonHardwareLoops.cpp

184     bool isInvalidLoopOperation(const MachineInstr *MI,
196     bool isDead(const MachineInstr *MI,
200     void removeIfDead(MachineInstr *MI);
208     /// \brief Return true if MO and MI pair is visited only once. If visited
211     bool isLoopFeeder(MachineLoop *L, MachineBasicBlock *A, MachineInstr *MI,
947 bool HexagonHardwareLoops::isInvalidLoopOperation(const MachineInstr *MI,
952   if (MI->getDesc().isCall() && MI->getOpcode() != Hexagon::CALLv3nr)
956   for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
957     const MachineOperand &MO = MI->getOperand(i);
980       const MachineInstr *MI = &*MII;
981       if (isInvalidLoopOperation(MI, IsInnerHWLoop)) {
982         DEBUG(dbgs()<< "\nCannot convert to hw_loop due to:"; MI->dump(););
994 bool HexagonHardwareLoops::isDead(const MachineInstr *MI,
997   for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
998     const MachineOperand &MO = MI->getOperand(i);
1030         // If the phi node has a user that is not MI, bail.
1031         if (MI != UseMI)
1042 void HexagonHardwareLoops::removeIfDead(MachineInstr *MI) {
1046   if (isDead(MI, DeadPhis)) {
1047     DEBUG(dbgs() << "HW looping will remove: " << *MI);
1052     for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
1053       const MachineOperand &MO = MI->getOperand(i);
1063         if (UseMI == MI)
1070     MI->eraseFromParent();
1325                                         MachineInstr *MI,
1417     MachineInstr *MI = &*I;
1421     if (!TII->analyzeCompare(MI, CmpReg1, CmpReg2, CmpMask, CmpValue))
1426     if (TII->AnalyzeBranch(*MI->getParent(), TBB, FBB, Cond, false))
1429     Comparison::Kind Cmp = getComparisonKind(MI->getOpcode(), 0, 0, 0);