[ARM] Accept conditional versions of BXNS and BLXNS

These instructions end in "S" but are not flag-setting, so they need including
in the list of special cases in the assembly parser.

Differential Revision: http://reviews.llvm.org/D21077

llvm-svn: 272015
diff --git a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index b9207a0..281c3fa 100644
--- a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -5420,6 +5420,7 @@
         Mnemonic == "fsts" || Mnemonic == "fcpys" || Mnemonic == "fdivs" ||
         Mnemonic == "fmuls" || Mnemonic == "fcmps" || Mnemonic == "fcmpzs" ||
         Mnemonic == "vfms" || Mnemonic == "vfnms" || Mnemonic == "fconsts" ||
+        Mnemonic == "bxns" || Mnemonic == "blxns" ||
         (Mnemonic == "movs" && isThumb()))) {
     Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 1);
     CarrySetting = true;