+void ARMCodeEmitter::emitNEONGetLaneInstruction(const MachineInstr &MI) {
+ unsigned Binary = getBinaryCodeForInstr(MI);
+
+ // Set the conditional execution predicate
+ Binary |= II->getPredicate(&MI) << ARMII::CondShift;
+
+ unsigned RegT = MI.getOperand(0).getReg();
+ RegT = ARMRegisterInfo::getRegisterNumbering(RegT);
+ Binary |= (RegT << ARMII::RegRdShift);
+ Binary |= encodeNEONRn(MI, 1);
+
+ unsigned LaneShift;
+ if ((Binary & (1 << 22)) != 0)
+ LaneShift = 0; // 8-bit elements
+ else if ((Binary & (1 << 5)) != 0)
+ LaneShift = 1; // 16-bit elements
+ else
+ LaneShift = 2; // 32-bit elements
+
+ unsigned Lane = MI.getOperand(2).getImm() << LaneShift;
+ unsigned Opc1 = Lane >> 2;
+ unsigned Opc2 = Lane & 3;
+ assert((Opc1 & 3) == 0 && "out-of-range lane number operand");
+ Binary |= (Opc1 << 21);
+ Binary |= (Opc2 << 5);
+
+ emitWordLE(Binary);
+}
+