ARM assembly parsing and encoding for SSAT16 instruction.

llvm-svn: 136006
diff --git a/llvm/utils/TableGen/EDEmitter.cpp b/llvm/utils/TableGen/EDEmitter.cpp
index 3001192..c9542cb 100644
--- a/llvm/utils/TableGen/EDEmitter.cpp
+++ b/llvm/utils/TableGen/EDEmitter.cpp
@@ -587,6 +587,7 @@
   IMM("neg_zero");
   IMM("imm0_31");
   IMM("imm0_31_m1");
+  IMM("imm1_16");
   IMM("imm1_32");
   IMM("nModImm");
   IMM("imm0_7");