ARM parsing and encoding for SVC instruction.

llvm-svn: 136090
diff --git a/llvm/utils/TableGen/EDEmitter.cpp b/llvm/utils/TableGen/EDEmitter.cpp
index c9542cb..83d93cb 100644
--- a/llvm/utils/TableGen/EDEmitter.cpp
+++ b/llvm/utils/TableGen/EDEmitter.cpp
@@ -596,6 +596,7 @@
   IMM("imm0_4095");
   IMM("imm0_65535");
   IMM("imm0_65535_expr");
+  IMM("imm24b");
   IMM("pkh_lsl_amt");
   IMM("pkh_asr_amt");
   IMM("jt2block_operand");