Add missing return statement.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134622 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsAsmPrinter.cpp b/lib/Target/Mips/MipsAsmPrinter.cpp
index 78f69ea..0ba4d63 100644
--- a/lib/Target/Mips/MipsAsmPrinter.cpp
+++ b/lib/Target/Mips/MipsAsmPrinter.cpp
@@ -78,8 +78,10 @@
       SmallString<128> Str;
       raw_svector_ostream OS(Str);
 
-      if (MI->isDebugValue())
+      if (MI->isDebugValue()) {
         PrintDebugValueComment(MI, OS);
+        return;
+      }
 
       printInstruction(MI, OS);
       OutStreamer.EmitRawText(OS.str());