yaxunl added inline comments.

================
Comment at: clang/include/clang/Basic/DiagnosticSemaKinds.td:8634
+def warn_hip_omp_target_directives : Warning<
+  "HIP does not support OpenMP target directives; directive has been ignored">,
+  InGroup<HIPOpenMPOffloading>;
----------------
jdoerfert wrote:
> mhalk wrote:
> > jdoerfert wrote:
> > > I doubt the ignored part very much.
> > I just re-checked the LLVM IR of an example.
> > With -x c++ there are __kmpc_target_(de)init calls; with -x hip there are 
> > none.
> > https://godbolt.org/z/fhds46Pvc
> > 
> > From my point of view, "effectively", target directives seem to have been 
> > ignored.
> > Maybe this is a coincidence (there's definitely some uncertainty) or I am 
> > misinterpreting the IR.
> > I would be glad if you could shed some light on this, if possible / you 
> > find the time to do so.
> Line 512 in the HIP output: https://godbolt.org/z/n5s5jz7j9.
If I remove --offload-arch for the C++ program, I got the same result as for 
HIP:

https://godbolt.org/z/4TMzxdfj6

Does that mean we should emit the same error for C++ too?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D145591/new/

https://reviews.llvm.org/D145591

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