Fix test/Regression/CodeGen/Generic/2005-07-12-memcpy-i64-length.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22417 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 1 deletions

diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 0fc06c0560..a05e5937a6 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -906,7 +906,12 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
 
     SDOperand Tmp4;
     switch (getTypeAction(Node->getOperand(3).getValueType())) {
-    case Expand: assert(0 && "Cannot expand this yet!");
+    case Expand: {
+      // Length is too big, just take the lo-part of the length.
+      SDOperand HiPart;
+      ExpandOp(Node->getOperand(3), HiPart, Tmp4);
+      break;
+    }
     case Legal:
       Tmp4 = LegalizeOp(Node->getOperand(3));
       break;