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authorStephen Hines <srhines@google.com>2014-02-11 20:01:10 -0800
committerStephen Hines <srhines@google.com>2014-02-11 20:01:10 -0800
commitce9904c6ea8fd669978a8eefb854b330eb9828ff (patch)
tree2418ee2e96ea220977c8fb74959192036ab5b133 /lib/CodeGen/TargetSchedule.cpp
parentc27b10b198c1d9e9b51f2303994313ec2778edd7 (diff)
parentdbb832b83351cec97b025b61c26536ef50c3181c (diff)
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Merge remote-tracking branch 'upstream/release_34' into merge-20140211
Conflicts: lib/Linker/LinkModules.cpp lib/Support/Unix/Signals.inc Change-Id: Ia54f291fa5dc828052d2412736e8495c1282aa64
Diffstat (limited to 'lib/CodeGen/TargetSchedule.cpp')
-rw-r--r--lib/CodeGen/TargetSchedule.cpp10
1 files changed, 7 insertions, 3 deletions
diff --git a/lib/CodeGen/TargetSchedule.cpp b/lib/CodeGen/TargetSchedule.cpp
index 64ee9d1..b0f2ca6 100644
--- a/lib/CodeGen/TargetSchedule.cpp
+++ b/lib/CodeGen/TargetSchedule.cpp
@@ -210,7 +210,8 @@ unsigned TargetSchedModel::computeOperandLatency(
// unit latency (defaultDefLatency may be too conservative).
#ifndef NDEBUG
if (SCDesc->isValid() && !DefMI->getOperand(DefOperIdx).isImplicit()
- && !DefMI->getDesc().OpInfo[DefOperIdx].isOptionalDef()) {
+ && !DefMI->getDesc().OpInfo[DefOperIdx].isOptionalDef()
+ && SchedModel.isComplete()) {
std::string Err;
raw_string_ostream ss(Err);
ss << "DefIdx " << DefIdx << " exceeds machine model writes for "
@@ -224,10 +225,13 @@ unsigned TargetSchedModel::computeOperandLatency(
return DefMI->isTransient() ? 0 : TII->defaultDefLatency(&SchedModel, DefMI);
}
-unsigned TargetSchedModel::computeInstrLatency(const MachineInstr *MI) const {
+unsigned
+TargetSchedModel::computeInstrLatency(const MachineInstr *MI,
+ bool UseDefaultDefLatency) const {
// 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())
+ if (hasInstrItineraries() || MI->isBundle() ||
+ (!hasInstrSchedModel() && !UseDefaultDefLatency))
return TII->getInstrLatency(&InstrItins, MI);
if (hasInstrSchedModel()) {