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mi-sched: improve regpressure tracing.

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llvm-svn: 190180
This commit is contained in:
Andrew Trick 2013-09-06 17:32:44 +00:00
parent 6f423c533c
commit 2792f17795
1 changed files with 7 additions and 2 deletions
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9
lib/CodeGen/MachineScheduler.cpp
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@ -566,7 +566,8 @@ updateScheduledPressure(const std::vector<unsigned> &NewMaxPressure) {
unsigned Limit = RegClassInfo->getRegPressureSetLimit(i);
if (NewMaxPressure[i] > Limit ) {
dbgs() << " " << TRI->getRegPressureSetName(i) << ": "
<< NewMaxPressure[i] << " > " << Limit << "\n";
<< NewMaxPressure[i] << " > " << Limit << "(+ "
<< BotRPTracker.getLiveThru()[i] << " livethru)\n";
}
});
}
@ -2454,6 +2455,10 @@ void ConvergingScheduler::tryCandidate(SchedCandidate &Cand,
}
}
}
DEBUG(if (TryCand.RPDelta.Excess.isValid())
dbgs() << " SU(" << TryCand.SU->NodeNum << ") "
<< TRI->getRegPressureSetName(TryCand.RPDelta.Excess.getPSet())
<< ":" << TryCand.RPDelta.Excess.getUnitInc() << "\n");
// Initialize the candidate if needed.
if (!Cand.isValid()) {
@ -2614,7 +2619,7 @@ void ConvergingScheduler::traceCandidate(const SchedCandidate &Cand) {
}
#endif
/// Pick the best candidate from the top queue.
/// Pick the best candidate from the queue.
///
/// TODO: getMaxPressureDelta results can be mostly cached for each SUnit during
/// DAG building. To adjust for the current scheduling location we need to