Lines Matching defs:VReg

277     Register VReg = MRI->createVirtualRegister(RC);
279             TII->get(TargetOpcode::IMPLICIT_DEF), VReg);
280     return VReg;
327   Register VReg = getVR(Op, VRBaseMap);
335   // shrink VReg's register class within reason.  For example, if VReg == GR32
336   // and II requires a GR32_NOSP, just constrain VReg to GR32_NOSP.
351         = MRI->constrainRegClass(VReg, OpRC, MinNumRegs);
357                 TII->get(TargetOpcode::COPY), NewVReg).addReg(VReg);
358         VReg = NewVReg;
361            "Constraining an allocatable VReg produced an unallocatable class?");
391   MIB.addReg(VReg, getDefRegState(isOptDef) | getKillRegState(isKill) |
412     Register VReg = R->getReg();
424     if (OpRC && IIRC && OpRC != IIRC && VReg.isVirtual()) {
427                TII->get(TargetOpcode::COPY), NewVReg).addReg(VReg);
428       VReg = NewVReg;
434     MIB.addReg(VReg, getImplRegState(Imp));
476 Register InstrEmitter::ConstrainForSubReg(Register VReg, unsigned SubIdx,
478   const TargetRegisterClass *VRC = MRI->getRegClass(VReg);
481   // RC is a sub-class of VRC that supports SubIdx.  Try to constrain VReg
484     RC = MRI->constrainRegClass(VReg, RC, MinRCSize);
486   // VReg has been adjusted.  It can be used with SubIdx operands now.
488     return VReg;
490   // VReg couldn't be reasonably constrained.  Emit a COPY to a new virtual
496     .addReg(VReg);
638   unsigned VReg = getVR(Node->getOperand(0), VRBaseMap);
640   // Create the new VReg in the destination class and emit a copy.
646     NewVReg).addReg(VReg);
827   // defines a VReg, it can depend for example on the order blocks are
835   auto AddVRegOp = [&](unsigned VReg) {
837         /* Reg */ VReg, /* isDef */ false, /* isImp */ false,
848     unsigned VReg;
851       VReg = DbgOperand.getVReg();
855       if (!MRI->hasOneDef(VReg)) {
856         AddVRegOp(VReg);
860       DefMI = &*MRI->def_instr_begin(VReg);
862       // Look up the corresponding VReg for the given SDNode, if any.
866       // No VReg -> produce a DBG_VALUE $noreg instead.
871       VReg = getVR(Op, VRBaseMap);
873       // Again, if there's no instruction defining the VReg right now, fix it up
875       if (!MRI->hasOneDef(VReg)) {
876         AddVRegOp(VReg);
880       DefMI = &*MRI->def_instr_begin(VReg);
891       AddVRegOp(VReg);
895     // Find the operand number which defines the specified VReg.
898       if (MO.isReg() && MO.isDef() && MO.getReg() == VReg)
1225       Register VReg = getVR(GluedNode->getOperand(0), VRBaseMap);
1226       MachineOperand MO = MachineOperand::CreateReg(VReg, /*isDef=*/false,