When combining (vextract shuffle (load ), <1,u,u,u>), 0) -> (load ), add users of the final load to the worklist too. Needed by changes I'm preparing to make to X86 backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153078 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 1bd1b95..7c4db97 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -7353,6 +7353,7 @@
// Since we're explcitly calling ReplaceAllUses, add the new node to the
// worklist explicitly as well.
AddToWorkList(Load.getNode());
+ AddUsersToWorkList(Load.getNode()); // Add users too
// Make sure to revisit this node to clean it up; it will usually be dead.
AddToWorkList(N);
return SDValue(N, 0);