Lines Matching refs:FirstMI

1155 // Returns true if FirstMI and MI are candidates for merging or pairing.
1157 static bool areCandidatesToMergeOrPair(MachineInstr &FirstMI, MachineInstr &MI,
1164   // We should have already checked FirstMI for pair suppression and volatility.
1165   assert(!FirstMI.hasOrderedMemoryRef() &&
1166          !TII->isLdStPairSuppressed(FirstMI) &&
1167          "FirstMI shouldn't get here if either of these checks are true.");
1169   unsigned OpcA = FirstMI.getOpcode();
1211   MachineInstr &FirstMI = *I;
1214   bool MayLoad = FirstMI.mayLoad();
1215   bool IsUnscaled = TII->isUnscaledLdSt(FirstMI);
1216   unsigned Reg = getLdStRegOp(FirstMI).getReg();
1217   unsigned BaseReg = getLdStBaseOp(FirstMI).getReg();
1218   int Offset = getLdStOffsetOp(FirstMI).getImm();
1219   int OffsetStride = IsUnscaled ? getMemScale(FirstMI) : 1;
1220   bool IsPromotableZeroStore = isPromotableZeroStoreInst(FirstMI);
1227   // Remember any instructions that read/write memory between FirstMI and MI.
1241     if (areCandidatesToMergeOrPair(FirstMI, MI, Flags, TII) &&
1255         // If FirstMI is scaled then scale the offset of MI accordingly.
1326         if (!ModifiedRegs[getLdStRegOp(FirstMI).getReg()] &&
1327             !(MayLoad && UsedRegs[getLdStRegOp(FirstMI).getReg()]) &&
1328             !mayAlias(FirstMI, MemInsns, TII)) {