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

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llvm-svn: 165606
This commit is contained in:
Andrew Trick 2012-10-10 05:43:18 +00:00
parent 79d929fd43
commit 9ba6a8d7ea
1 changed files with 4 additions and 3 deletions
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7
lib/CodeGen/TargetSchedule.cpp
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@ -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);