[PATCH] D151349: [HIP] emit macro `__HIP_NO_IMAGE_SUPPORT`

[Yaxun Liu via Phabricator via cfe-commits]

yaxunl created this revision.
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HIP texture/image support is optional as some devices
do not have image instructions. A macro `__HIP_NO_IMAGE_SUPPORT`
is defined for device not supporting images (https://github.com/ROCm-Developer-Tools/HIP/blob/d0448aa4c4dd0f4b29ccf6a663b7f5ad9f5183e0/docs/reference/kernel_language.md?plain=1#L426 )

Currently the macro is defined by HIP header based on predefined macros
for GPU, e.g `__gfx*__` , which is error prone. This patch let clang
emit the predefined macro.


https://reviews.llvm.org/D151349

Files:
  clang/include/clang/Basic/TargetInfo.h
  clang/lib/Basic/Targets/AMDGPU.h
  clang/lib/Frontend/InitPreprocessor.cpp
  clang/test/Driver/hip-macros.hip
  llvm/lib/TargetParser/TargetParser.cpp

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