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MachineScheduler: Add regpressure information to debug dump

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252340 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matthias Braun 2015-11-06 20:59:02 +00:00
parent bc78f60f4a
commit 810bd4f219
3 changed files with 36 additions and 9 deletions
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36
lib/CodeGen/MachineScheduler.cpp
View File

@ -989,15 +989,21 @@ void ScheduleDAGMILive::updatePressureDiffs(ArrayRef<unsigned> LiveUses) {
for (const VReg2SUnit &V2SU
: make_range(VRegUses.find(Reg), VRegUses.end())) {
SUnit *SU = V2SU.SU;
DEBUG(dbgs() << " UpdateRegP: SU(" << SU->NodeNum << ") "
<< *SU->getInstr());
// If this use comes before the reaching def, it cannot be a last use, so
// descrease its pressure change.
if (!SU->isScheduled && SU != &ExitSU) {
LiveQueryResult LRQ
= LI.Query(LIS->getInstructionIndex(SU->getInstr()));
if (LRQ.valueIn() == VNI)
getPressureDiff(SU).addPressureChange(Reg, true, &MRI);
if (LRQ.valueIn() == VNI) {
PressureDiff &PDiff = getPressureDiff(SU);
PDiff.addPressureChange(Reg, true, &MRI);
DEBUG(
dbgs() << " UpdateRegP: SU(" << SU->NodeNum << ") "
<< *SU->getInstr();
dbgs() << " to ";
PDiff.dump(*TRI);
);
}
}
}
}
@ -1029,8 +1035,16 @@ void ScheduleDAGMILive::schedule() {
// This may initialize a DFSResult to be used for queue priority.
SchedImpl->initialize(this);
DEBUG(for (unsigned su = 0, e = SUnits.size(); su != e; ++su)
SUnits[su].dumpAll(this));
DEBUG(
for (const SUnit &SU : SUnits) {
SU.dumpAll(this);
if (ShouldTrackPressure) {
dbgs() << " Pressure Diff : ";
getPressureDiff(&SU).dump(*TRI);
}
dbgs() << '\n';
}
);
if (ViewMISchedDAGs) viewGraph();
// Initialize ready queues now that the DAG and priority data are finalized.
@ -1220,6 +1234,11 @@ void ScheduleDAGMILive::scheduleMI(SUnit *SU, bool IsTopNode) {
// Update top scheduled pressure.
TopRPTracker.advance();
assert(TopRPTracker.getPos() == CurrentTop && "out of sync");
DEBUG(
dbgs() << "Top Pressure:\n";
dumpRegSetPressure(TopRPTracker.getRegSetPressureAtPos(), TRI);
);
updateScheduledPressure(SU, TopRPTracker.getPressure().MaxSetPressure);
}
}
@ -1242,6 +1261,11 @@ void ScheduleDAGMILive::scheduleMI(SUnit *SU, bool IsTopNode) {
SmallVector<unsigned, 8> LiveUses;
BotRPTracker.recede(&LiveUses);
assert(BotRPTracker.getPos() == CurrentBottom && "out of sync");
DEBUG(
dbgs() << "Bottom Pressure:\n";
dumpRegSetPressure(BotRPTracker.getRegSetPressureAtPos(), TRI);
);
updateScheduledPressure(SU, BotRPTracker.getPressure().MaxSetPressure);
updatePressureDiffs(LiveUses);
}

8
lib/CodeGen/PostRASchedulerList.cpp
View File

@ -399,8 +399,12 @@ void SchedulePostRATDList::schedule() {
}
DEBUG(dbgs() << "********** List Scheduling **********\n");
DEBUG(for (unsigned su = 0, e = SUnits.size(); su != e; ++su)
SUnits[su].dumpAll(this));
DEBUG(
for (const SUnit &SU : SUnits) {
SU.dumpAll(this);
dbgs() << '\n';
}
);
AvailableQueue.initNodes(SUnits);
ListScheduleTopDown();

1
lib/CodeGen/ScheduleDAG.cpp
View File

@ -372,7 +372,6 @@ void SUnit::dumpAll(const ScheduleDAG *G) const {
dbgs() << "\n";
}
}
dbgs() << "\n";
}
#endif