[TableGen] Make StringInit constructor take a StringRef instead of const std::string...

[oota-llvm.git] / lib / CodeGen / RegisterPressure.cpp

diff --git a/lib/CodeGen/RegisterPressure.cpp b/lib/CodeGen/RegisterPressure.cpp
index 450a3051c6ffb2499bb38629c860fef41e082bee..3456bb6f9f85d32866e90324cdbe9bc7f01993d1 100644 (file)
--- a/lib/CodeGen/RegisterPressure.cpp
+++ b/lib/CodeGen/RegisterPressure.cpp
@@ -77,6 +77,16 @@ void RegPressureTracker::dump() const {
   P.dump(TRI);
 }
 
+void PressureDiff::dump(const TargetRegisterInfo &TRI) const {
+  for (const PressureChange &Change : *this) {
+    if (!Change.isValid() || Change.getUnitInc() == 0)
+      continue;
+    dbgs() << "    " << TRI.getRegPressureSetName(Change.getPSet())
+           << " " << Change.getUnitInc();
+  }
+  dbgs() << '\n';
+}
+
 /// Increase the current pressure as impacted by these registers and bump
 /// the high water mark if needed.
 void RegPressureTracker::increaseRegPressure(ArrayRef<unsigned> RegUnits) {
@@ -787,6 +797,8 @@ getMaxUpwardPressureDelta(const MachineInstr *MI, PressureDiff *PDiff,
   RegPressureDelta Delta2;
   getUpwardPressureDelta(MI, *PDiff, Delta2, CriticalPSets, MaxPressureLimit);
   if (Delta != Delta2) {
+    dbgs() << "PDiff: ";
+    PDiff->dump(*TRI);
     dbgs() << "DELTA: " << *MI;
     if (Delta.Excess.isValid())
       dbgs() << "Excess1 " << TRI->getRegPressureSetName(Delta.Excess.getPSet())
@@ -954,7 +966,7 @@ void RegPressureTracker::bumpDownwardPressure(const MachineInstr *MI) {
 /// This is expensive for an on-the-fly query because it calls
 /// bumpDownwardPressure to recompute the pressure sets based on current
 /// liveness. We don't yet have a fast version of downward pressure tracking
-/// analagous to getUpwardPressureDelta.
+/// analogous to getUpwardPressureDelta.
 void RegPressureTracker::
 getMaxDownwardPressureDelta(const MachineInstr *MI, RegPressureDelta &Delta,
                             ArrayRef<PressureChange> CriticalPSets,