Better diagnostic location information for mnemonic suffices.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139232 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index b468d9f..1aa5563 100644
--- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -3233,8 +3233,10 @@
     // For now, we're only parsing Thumb1 (for the most part), so
     // just ignore ".n" qualifiers. We'll use them to restrict
     // matching when we do Thumb2.
-    if (ExtraToken != ".n")
-      Operands.push_back(ARMOperand::CreateToken(ExtraToken, NameLoc));
+    if (ExtraToken != ".n") {
+      SMLoc Loc = SMLoc::getFromPointer(NameLoc.getPointer() + Start);
+      Operands.push_back(ARMOperand::CreateToken(ExtraToken, Loc));
+    }
   }
 
   // Read the remaining operands.