[clang] [Clang][SYCL] Introduce clang-sycl-linker to link SYCL offloading device code (Part 1 of many) (PR #112245)

[Alexey Bader via cfe-commits]

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+include "llvm/Option/OptParser.td"
+
+def WrapperOnlyOption : OptionFlag;
+
+def help : Flag<["-", "--"], "help">,
+  HelpText<"Display available options (--help-hidden for more)">;
+
+def help_hidden : Flag<["-", "--"], "help-hidden">,
+  HelpText<"Display all available options">;
+
+def verbose : Flag<["-"], "v">, HelpText<"Print verbose information">;
+def version : Flag<["--"], "version">,
+  HelpText<"Display the version number and exit">;
+
+def o : JoinedOrSeparate<["-"], "o">, MetaVarName<"<path>">,
+  HelpText<"Path to file to write output">;
+def output : Separate<["--"], "output-file">, Alias<o>, Flags<[HelpHidden]>,
+  HelpText<"Alias for -o">;
+
+def library_path_EQ : Joined<["--", "-"], "library-path=">,
+  Flags<[HelpHidden]>, HelpText<"Add <dir> to the library search path">;
+
+def device_libs_EQ : CommaJoined<["--", "-"], "device-libs=">,
+  Flags<[WrapperOnlyOption]>,
+  HelpText<"A comma separated list of device libraries that are linked during the device link.">;
+
+def triple : Joined<["--"], "triple">,
+  HelpText<"The device target triple">;
+def arch : Separate<["--", "-"], "arch">,
+  HelpText<"Specify the name of the target architecture.">;
+
+def g : Flag<["-"], "g">, HelpText<"Specify that this was a debug compile.">;
+def debug : Flag<["--"], "debug">, Alias<g>;
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bader wrote:

Why would we need to specify that? I see that this option is not used. I would expect the linker to inspect the object file to identify if "this was a debug compile" rather than rely on command line option.

https://github.com/llvm/llvm-project/pull/112245