[clang] [flang] [Flang][OpenMP] Add -fopenmp-force-usm option to flang (PR #94359)

[Michael Kruse via cfe-commits]

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@@ -766,6 +766,8 @@ void Flang::ConstructJob(Compilation &C, const JobAction &JA,
       Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_version_EQ);
 
       // FIXME: Clang supports a whole bunch more flags here.
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Meinersbur wrote:

The FIXME should stay behind all handled options

https://github.com/llvm/llvm-project/pull/94359