[PATCH] D133502: [ADT] Mark `llvm::array_lengthof` as deprecated

[Martin Storsjö via Phabricator via llvm-commits]

mstorsjo added a comment.

This produces a warning when built with GCC for every single source file that includes the header:

  ../include/llvm/Support/Compiler.h:145:35: warning: attribute ignored [-Wattributes]  
    145 | #define LLVM_DEPRECATED(MSG, FIX) [[deprecated(MSG)]]
        |                                   ^
  ../include/llvm/ADT/STLArrayExtras.h:31:18: note: in expansion of macro ‘LLVM_DEPRECATED’        
     31 | constexpr inline LLVM_DEPRECATED("Use std::size instead.", "std::size") size_t
        |                  ^~~~~~~~~~~~~~~
  ../include/llvm/Support/Compiler.h:145:35: note: an attribute that appertains to a type-specifier is ignored              
    145 | #define LLVM_DEPRECATED(MSG, FIX) [[deprecated(MSG)]]
        |                                   ^
  ../include/llvm/ADT/STLArrayExtras.h:31:18: note: in expansion of macro ‘LLVM_DEPRECATED’
     31 | constexpr inline LLVM_DEPRECATED("Use std::size instead.", "std::size") size_t
        |                  ^~~~~~~~~~~~~~~


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