[PATCH] D51554: [CUDA][OPENMP][NVPTX]Improve logic of the debug info support.

[Alexey Bataev via Phabricator via cfe-commits]

ABataev created this revision.
ABataev added reviewers: tra, echristo.
Herald added subscribers: JDevlieghere, guansong, aprantl.

Added support for the -gline-directives-only option + fixed logic of the
debug info for CUDA devices. If optimization level is O0, then options
--[no-]cuda-noopt-device-debug do not affect the debug info level. If
the optimization level is >O0, debug info options are used +
--no-cuda-noopt-device-debug is used or no --cuda-noopt-device-debug is
used, the optimization level for the device code is kept and the
emission of the debug directives is used.
If the opt level is > O0, debug info is requested +
--cuda-noopt-device-debug option is used, the optimization is disabled
for the device code + required debug info is emitted.


Repository:
  rC Clang

https://reviews.llvm.org/D51554

Files:
  include/clang/Driver/ToolChain.h
  lib/Driver/ToolChains/Clang.cpp
  lib/Driver/ToolChains/Cuda.cpp
  lib/Driver/ToolChains/Cuda.h
  test/Driver/cuda-dwarf-2.cu
  test/Driver/openmp-offload-gpu.c

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