[PATCH] D154036: [libc] Add support for creating wrapper headers for offloading in clang

[Joseph Huber via Phabricator via cfe-commits]

jhuber6 updated this revision to Diff 535983.
jhuber6 added a comment.

Add some checks to `stdlib.h` to ensure ABI compatibility for `div` functions.

Because this patch makes us always include the LLVM libc repo when offloading,
we mask off the wrappers if they were not installed by `libc`, so this is simply
a passthrough include header if the user didn't build with LLVM C library for
the GPU.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D154036/new/

https://reviews.llvm.org/D154036

Files:
  clang/lib/Driver/ToolChains/Clang.cpp
  clang/lib/Headers/CMakeLists.txt
  clang/lib/Headers/llvm_libc_wrappers/ctype.h
  clang/lib/Headers/llvm_libc_wrappers/llvm-libc-decls/README.txt
  clang/lib/Headers/llvm_libc_wrappers/stdio.h
  clang/lib/Headers/llvm_libc_wrappers/stdlib.h
  clang/lib/Headers/llvm_libc_wrappers/string.h
  clang/test/Driver/gpu-libc-headers.c
  libc/cmake/modules/LLVMLibCHeaderRules.cmake
  libc/include/CMakeLists.txt
  libc/utils/HdrGen/Generator.cpp
  libc/utils/HdrGen/Generator.h
  libc/utils/HdrGen/Main.cpp

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