probinson added inline comments.

================
Comment at: clang/lib/Driver/ToolChains/Clang.cpp:6171
+
+  if (DwarfVersion == 0)
+    DwarfVersion = ParseDwarfDefaultVersion(getToolChain(), Args);
----------------
MaskRay wrote:
>   lang=cpp
>   if (DwarfVersion == 0) {
>     DwarfVersion = ParseDwarfDefaultVersion(getToolChain(), Args);
>     if (DwarfVersion == 0)
>       DwarfVersion = getToolChain().GetDefaultDwarfVersion();
>   }
> 
> This part constructs a -cc1as command line. It is not covered by a test. Can 
> you add one?
Hi @MaskRay , your version would have the unclaimed-option problem.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D69822/new/

https://reviews.llvm.org/D69822



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