misched: fall-back to a target hook for instr bundles.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165606 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Trick 2012-10-10 05:43:18 +00:00
parent 85c7b6108f
commit 82d46aec62

View File

@ -203,10 +203,11 @@ unsigned TargetSchedModel::computeOperandLatency(
}
unsigned TargetSchedModel::computeInstrLatency(const MachineInstr *MI) const {
if (hasInstrItineraries()) {
// For the itinerary model, fall back to the old subtarget hook.
// For the itinerary model, fall back to the old subtarget hook.
// Allow subtargets to compute Bundle latencies outside the machine model.
if (hasInstrItineraries() || MI->isBundle())
return TII->getInstrLatency(&InstrItins, MI);
}
if (hasInstrSchedModel()) {
unsigned Latency = 0;
const MCSchedClassDesc *SCDesc = resolveSchedClass(MI);