Fixed x86 code generation of multiple for v2i64.  It was incorrect for SSE4.1.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61211 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.h b/lib/Target/X86/X86ISelLowering.h
index 6ff1b99..5619e94 100644
--- a/lib/Target/X86/X86ISelLowering.h
+++ b/lib/Target/X86/X86ISelLowering.h
@@ -597,6 +597,7 @@
     SDValue LowerFLT_ROUNDS_(SDValue Op, SelectionDAG &DAG);
     SDValue LowerCTLZ(SDValue Op, SelectionDAG &DAG);
     SDValue LowerCTTZ(SDValue Op, SelectionDAG &DAG);
+    SDValue LowerMUL_V2I64(SDValue Op, SelectionDAG &DAG);
     SDValue LowerXALUO(SDValue Op, SelectionDAG &DAG);
 
     SDValue LowerCMP_SWAP(SDValue Op, SelectionDAG &DAG);