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-rw-r--r--llvm/lib/CodeGen/TargetInstrInfoImpl.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp b/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
index 8ed66f70443..4439192fe2f 100644
--- a/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
+++ b/llvm/lib/CodeGen/TargetInstrInfoImpl.cpp
@@ -563,6 +563,8 @@ TargetInstrInfoImpl::getNumMicroOps(const InstrItineraryData *ItinData,
/// Return the default expected latency for a def based on it's opcode.
unsigned TargetInstrInfo::defaultDefLatency(const MCSchedModel *SchedModel,
const MachineInstr *DefMI) const {
+ if (DefMI->isTransient())
+ return 0;
if (DefMI->mayLoad())
return SchedModel->LoadLatency;
if (isHighLatencyDef(DefMI->getOpcode()))
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