Chain producing nodes cannot be moved, not chain reading nodes.
llvm-svn: 42627
diff --git a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
index 081e310..7760339 100644
--- a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
@@ -397,17 +397,19 @@
return NULL;
SUnit *NewSU;
- for (unsigned i = 0, e = N->getNumValues(); i != e; ++i)
- if (N->getValueType(i) == MVT::Flag)
- return NULL;
bool TryUnfold = false;
+ for (unsigned i = 0, e = N->getNumValues(); i != e; ++i) {
+ MVT::ValueType VT = N->getValueType(i);
+ if (VT == MVT::Flag)
+ return NULL;
+ else if (VT == MVT::Other)
+ TryUnfold = true;
+ }
for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
const SDOperand &Op = N->getOperand(i);
MVT::ValueType VT = Op.Val->getValueType(Op.ResNo);
if (VT == MVT::Flag)
return NULL;
- else if (VT == MVT::Other)
- TryUnfold = true;
}
if (TryUnfold) {