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-rw-r--r--lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
index ad835806a4..87739c0391 100644
--- a/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
+++ b/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
@@ -1645,11 +1645,13 @@ bool RegReductionPQBase::HighRegPressure(const SUnit *SU) const {
// NumSuccsLeft counts all deps. Don't compare it with NumSuccs which only
// counts data deps. To be more precise, we could maintain a
// NumDataSuccsLeft count.
+ /* FIXME: exposing a downstream bug, JM/lencode miscompile
if (PredSU->NumSuccsLeft != PredSU->Succs.size()) {
DEBUG(dbgs() << " SU(" << PredSU->NodeNum << ") live across SU("
<< SU->NodeNum << ")\n");
continue;
}
+ */
const SDNode *PN = PredSU->getNode();
if (!PN->isMachineOpcode()) {
if (PN->getOpcode() == ISD::CopyFromReg) {