diff --git a/llvm/utils/TableGen/EDEmitter.cpp b/llvm/utils/TableGen/EDEmitter.cpp
index cdfb983..e9edfe4 100644
--- a/llvm/utils/TableGen/EDEmitter.cpp
+++ b/llvm/utils/TableGen/EDEmitter.cpp
@@ -600,6 +600,7 @@
   IMM("nImmSplatI8");
   IMM("nImmSplatI16");
   IMM("nImmSplatI32");
+  IMM("nImmSplatI64");
   IMM("nImmVMOVI32");
   IMM("imm0_7");
   IMM("imm0_15");