diff options
Diffstat (limited to 'lib/CodeGen/RegisterPressure.cpp')
| -rw-r--r-- | lib/CodeGen/RegisterPressure.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/lib/CodeGen/RegisterPressure.cpp b/lib/CodeGen/RegisterPressure.cpp index 52174d8..43448c8 100644 --- a/lib/CodeGen/RegisterPressure.cpp +++ b/lib/CodeGen/RegisterPressure.cpp @@ -811,25 +811,31 @@ getMaxDownwardPressureDelta(const MachineInstr *MI, RegPressureDelta &Delta, /// 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); } |