[all-commits] [llvm/llvm-project] 771185: [libc] Remove obsolete LIBC_HAS_BUILTIN macro (#86...

[Marc Auberer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 77118536b52bf5256eed85f61451d0beb6cf5dc3
      https://github.com/llvm/llvm-project/commit/77118536b52bf5256eed85f61451d0beb6cf5dc3
  Author: Marc Auberer <marc.auberer at chillibits.com>
  Date:   2024-03-27 (Wed, 27 Mar 2024)

  Changed paths:
    M libc/docs/dev/code_style.rst
    M libc/src/__support/CPP/CMakeLists.txt
    M libc/src/__support/CPP/atomic.h
    M libc/src/__support/CPP/bit.h
    M libc/src/__support/CPP/type_traits/add_pointer.h
    M libc/src/__support/CPP/type_traits/decay.h
    M libc/src/__support/CPP/type_traits/is_destructible.h
    M libc/src/__support/CPP/type_traits/is_function.h
    M libc/src/__support/CPP/type_traits/is_lvalue_reference.h
    M libc/src/__support/CPP/type_traits/is_reference.h
    M libc/src/__support/CPP/type_traits/is_rvalue_reference.h
    M libc/src/__support/CPP/type_traits/is_trivially_copyable.h
    M libc/src/__support/CPP/type_traits/is_trivially_destructible.h
    M libc/src/__support/CPP/type_traits/remove_all_extents.h
    M libc/src/__support/FPUtil/CMakeLists.txt
    M libc/src/__support/FPUtil/FEnvImpl.h
    M libc/src/__support/FPUtil/gpu/FMA.h
    M libc/src/__support/macros/config.h
    M libc/src/__support/macros/optimization.h
    M libc/src/__support/macros/sanitizer.h
    M libc/src/__support/math_extras.h
    M libc/src/__support/memory_size.h
    M libc/src/string/memory_utils/generic/builtin.h
    M libc/src/string/memory_utils/utils.h
    M libc/utils/gpu/server/rpc_server.cpp
    M utils/bazel/llvm-project-overlay/libc/BUILD.bazel

  Log Message:
  -----------
  [libc] Remove obsolete LIBC_HAS_BUILTIN macro (#86554)

Fixes #86546 and removes the macro `LIBC_HAS_BUILTIN`. This was
necessary to support older compilers that did not support
`__has_builtin`. All of the compilers we support already have this
builtin.
See: https://libc.llvm.org/compiler_support.html
All uses now use `__has_builtin` directly

cc @nickdesaulniers



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