[PATCH] D45061: [NVPTX, CUDA] Use custom feature detection to handle NVPTX target builtins.

[Artem Belevich via Phabricator via cfe-commits]

tra created this revision.
tra added a reviewer: jlebar.
Herald added subscribers: hiraditya, sanjoy, jholewinski.

When NVPTX TARGET_BUILTIN specifies sm_XX or ptxYY as required feature,
consider those features available if we're compiling for GPU >= sm_XX or have
enabled PTX version >= ptxYY.

This is needed to control availability of target builtins in NVPTX that are
available for large enough set of combinations that would make it very
cumbersome to enumerate individually.


https://reviews.llvm.org/D45061

Files:
  clang/include/clang/Basic/BuiltinsNVPTX.def
  clang/include/clang/Basic/Cuda.h
  clang/lib/Basic/Targets/NVPTX.cpp
  clang/lib/Basic/Targets/NVPTX.h
  clang/test/CodeGen/builtins-nvptx-ptx50.cu
  clang/test/CodeGen/builtins-nvptx.c
  llvm/lib/Target/NVPTX/NVPTX.td
  llvm/lib/Target/NVPTX/NVPTXSubtarget.h

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