1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp
index 8c670e75dda..24992c7d6f2 100644
--- a/llvm/lib/Target/ARM/ARMISelLowering.cpp
+++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp
@@ -2642,9 +2642,9 @@ ARMTargetLowering::LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG,
   switch (IntNo) {
   default: return SDValue();    // Don't custom lower most intrinsics.
   case Intrinsic::arm_rbit: {
-    assert(Op.getOperand(0).getValueType() == MVT::i32 &&
+    assert(Op.getOperand(1).getValueType() == MVT::i32 &&
            "RBIT intrinsic must have i32 type!");
-    return DAG.getNode(ARMISD::RBIT, dl, MVT::i32, Op.getOperand(0));
+    return DAG.getNode(ARMISD::RBIT, dl, MVT::i32, Op.getOperand(1));
   }
   case Intrinsic::arm_thread_pointer: {
     EVT PtrVT = DAG.getTargetLoweringInfo().getPointerTy();