[clang] [clang-cl][flang][dxc] Fix opts exposed to clang-cl/dxc by mistake (PR #118640)

[Haohai Wen via cfe-commits]

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@@ -1055,11 +1055,11 @@ def z : Separate<["-"], "z">, Flags<[LinkerInput]>,
 def offload_link : Flag<["--"], "offload-link">, Group<Link_Group>,
   HelpText<"Use the new offloading linker to perform the link job.">;
 def Xlinker : Separate<["-"], "Xlinker">, Flags<[LinkerInput, RenderAsInput]>,
-  Visibility<[ClangOption, CLOption, FlangOption, DXCOption]>,
+  Visibility<[ClangOption, FlangOption]>,
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HaohaiWen wrote:

For clang-cl, /link would pass all args after it to linker and that would cause some trouble when using cmake.
e.g. cmake may use clang-cl as "linker" and append some args after flags specified by CMAKE_EXE_LINKER_FLAGS.
In that case, -Xlinker is better choice.


https://github.com/llvm/llvm-project/pull/118640