Thumb assembly parsing and encoding for NEG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138131 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index 258d692..6a14387 100644
--- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -2831,7 +2831,7 @@
       Mnemonic == "umlal" || Mnemonic == "orr" || Mnemonic == "mvn" ||
       Mnemonic == "rsb" || Mnemonic == "rsc" || Mnemonic == "orn" ||
       Mnemonic == "sbc" || Mnemonic == "mla" || Mnemonic == "umull" ||
-      Mnemonic == "eor" || Mnemonic == "smlal" ||
+      Mnemonic == "eor" || Mnemonic == "smlal" || Mnemonic == "neg" ||
       // FIXME: We need a better way. This really confused Thumb2
       // parsing for 'mov'.
       (Mnemonic == "mov" && !isThumbOne())) {