jrtc27 added inline comments.

================
Comment at: clang/docs/LanguageExtensions.rst:2844
+The builtins ``__builtin_align_up``, ``__builtin_align_down``, return their
+first argument aligned up/down to the next multiple of the second argument.
+The builtin ``__builtin_is_aligned`` returns whether the first argument is
----------------
This should clearly state whether an already-aligned argument is left 
unmodified or incremented/decremented by the alignment amount. As it stands it 
reads more like such arguments will be modified, but the implementation is to 
round, ie the former.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D71499/new/

https://reviews.llvm.org/D71499



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