/// Get the pressure of each PSet after traversing this instruction bottom-up.
void RegPressureTracker::
getUpwardPressure(const MachineInstr *MI,
- std::vector<unsigned> &PressureResult) {
+ std::vector<unsigned> &PressureResult,
+ std::vector<unsigned> &MaxPressureResult) {
// Snapshot pressure.
PressureResult = CurrSetPressure;
+ MaxPressureResult = P.MaxSetPressure;
bumpUpwardPressure(MI);
// Current pressure becomes the result. Restore current pressure.
+ P.MaxSetPressure.swap(MaxPressureResult);
CurrSetPressure.swap(PressureResult);
}
/// Get the pressure of each PSet after traversing this instruction top-down.
void RegPressureTracker::
getDownwardPressure(const MachineInstr *MI,
- std::vector<unsigned> &PressureResult) {
+ std::vector<unsigned> &PressureResult,
+ std::vector<unsigned> &MaxPressureResult) {
// Snapshot pressure.
PressureResult = CurrSetPressure;
+ MaxPressureResult = P.MaxSetPressure;
bumpDownwardPressure(MI);
// Current pressure becomes the result. Restore current pressure.
+ P.MaxSetPressure.swap(MaxPressureResult);
CurrSetPressure.swap(PressureResult);
}