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
2025-01-14 00:32:55 +00:00 · 2012-03-20 05:28:39 +00:00 · 2012-03-20 05:28:39 +00:00 · 0c9da210f7
commit 0c9da210f7
parent 8c5293c955
1 changed files with 1 additions and 0 deletions
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@ -7353,6 +7353,7 @@ SDValue DAGCombiner::visitEXTRACT_VECTOR_ELT(SDNode *N) {
    // 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);