LegalizeDAG: Allow type promotion for scalar stores

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169772 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index ba0ce34f69f372df08892a091de2a39bddd78667..eb8df32e17bc70bda6e555a4bf57a1364c4132fe 100644 (file)
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -731,9 +731,10 @@ void SelectionDAGLegalize::LegalizeStoreOps(SDNode *Node) {
           return;
         }
         case TargetLowering::Promote: {
-          assert(VT.isVector() && "Unknown legal promote case!");
-          Value = DAG.getNode(ISD::BITCAST, dl,
-                             TLI.getTypeToPromoteTo(ISD::STORE, VT), Value);
+          EVT NVT = TLI.getTypeToPromoteTo(ISD::STORE, VT);
+          assert(NVT.getSizeInBits() == VT.getSizeInBits() &&
+                 "Can only promote stores to same size type");
+          Value = DAG.getNode(ISD::BITCAST, dl, NVT, Value);
           SDValue Result =
             DAG.getStore(Chain, dl, Value, Ptr,
                          ST->getPointerInfo(), isVolatile,