[PATCH] D124220: [OpenMP] Add options to only compile the host or device when offloading

[Joseph Huber via Phabricator via cfe-commits]

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OpenMP recently moved to the new offloading driver, this had the effect
of making it more difficult to inspect intermediate code for the device.
This patch adds `-foffload-host-only` and `-foffload-device-only` to
control which sides get compiled. This will allow users to more easily
inspect output without needing the temp files.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D124220

Files:
  clang/include/clang/Driver/Options.td
  clang/lib/Driver/Driver.cpp
  clang/test/Driver/openmp-offload-gpu-new.c

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