ARM mode encoding information for UBFX and SBFX instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116588 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/EDEmitter.cpp b/utils/TableGen/EDEmitter.cpp
index 8435bb4..678ec6a 100644
--- a/utils/TableGen/EDEmitter.cpp
+++ b/utils/TableGen/EDEmitter.cpp
@@ -575,6 +575,7 @@
   IMM("msr_mask");
   IMM("neg_zero");
   IMM("imm0_31");
+  IMM("imm0_31_m1");
   IMM("nModImm");
   IMM("imm0_4095");
   IMM("jt2block_operand");