[PATCH] D44691: [CUDA] Disable LTO for device-side compilations.

[Artem Belevich via Phabricator via cfe-commits]

tra created this revision.
tra added reviewers: tejohnson, jlebar.
Herald added subscribers: eraman, inglorion, mehdi_amini, sanjoy.

This fixes host-side LTO during CUDA compilation. Before, LTO
pipeline construction was clashing with CUDA pipeline construction.

At the moment there's no point doing LTO on device side as each
device-side TU is a complete program.  We will need to figure out 
compilation pipeline construction for the device-side LTO when we 
have working support for multi-TU device-side CUDA compilation.


https://reviews.llvm.org/D44691

Files:
  clang/include/clang/Driver/Driver.h
  clang/lib/Driver/Driver.cpp
  clang/lib/Driver/ToolChains/Clang.cpp
  clang/test/Driver/lto.cu
  clang/test/Driver/thinlto.cu

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