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path: root/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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-rw-r--r--lib/CodeGen/SelectionDAG/DAGCombiner.cpp6
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index df1a0a353e..6bddd784fe 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -3832,8 +3832,12 @@ SDValue DAGCombiner::visitANY_EXTEND(SDNode *N) {
if (N0.getOpcode() == ISD::TRUNCATE) {
SDValue NarrowLoad = ReduceLoadWidth(N0.getNode());
if (NarrowLoad.getNode()) {
- if (NarrowLoad.getNode() != N0.getNode())
+ SDNode* oye = N0.getNode()->getOperand(0).getNode();
+ if (NarrowLoad.getNode() != N0.getNode()) {
CombineTo(N0.getNode(), NarrowLoad);
+ // CombineTo deleted the truncate, if needed, but not what's under it.
+ AddToWorkList(oye);
+ }
return DAG.getNode(ISD::ANY_EXTEND, N->getDebugLoc(), VT, NarrowLoad);
}
}