lib/CodeGen/RegisterPressure.cpp

422   PressureDiff &PDiff = (*this)[Idx];
423   assert(!PDiff.begin()->isValid() && "stale PDiff");
425     PDiff.addPressureChange(Reg, true, &MRI);
428     PDiff.addPressureChange(Reg, false, &MRI);
654     int PDiff = (int)PNew - (int)POld;
655     if (!PDiff) // No change in this set in the common case.
664         PDiff = 0;            // Under the limit
666         PDiff = PNew - Limit; // Just exceeded limit.
668       PDiff = Limit - POld;   // Just obeyed limit.
670     if (PDiff) {
672       Delta.Excess.setUnitInc(PDiff);
704         int PDiff = (int)PNew - (int)CriticalPSets[CritIdx].getUnitInc();
705         if (PDiff > 0) {
707           Delta.CriticalMax.setUnitInc(PDiff);
764 getMaxUpwardPressureDelta(const MachineInstr *MI, PressureDiff *PDiff,
788   if (!PDiff)
793   getUpwardPressureDelta(MI, *PDiff, Delta2, CriticalPSets, MaxPressureLimit);
795     dbgs() << "PDiff: ";
796     PDiff->dump(*TRI);
832 getUpwardPressureDelta(const MachineInstr *MI, /*const*/ PressureDiff &PDiff,
838          PDiffI = PDiff.begin(), PDiffE = PDiff.end();