The scheduler needs to be aware on the existence of untyped nodes when it performs type propagation for EXTRACT_SUBREG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133838 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
index dbc623b..f03bf10 100644
--- a/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
+++ b/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
@@ -521,7 +521,8 @@
if (!Node->hasAnyUseOfValue(DefIdx))
continue;
if (Node->isMachineOpcode() &&
- Node->getMachineOpcode() == TargetOpcode::EXTRACT_SUBREG) {
+ Node->getMachineOpcode() == TargetOpcode::EXTRACT_SUBREG &&
+ Node->getOperand(0).getValueType() != MVT::untyped) {
// Propagate the incoming (full-register) type. I doubt it's needed.
ValueType = Node->getOperand(0).getValueType();
}