[PATCH] D22725: [clang-tidy] Add check 'misc-replace-memcpy'

Jonas Devlieghere via cfe-commits cfe-commits at lists.llvm.org
Sat Jul 23 10:31:24 PDT 2016


JDevlieghere added a comment.

In https://reviews.llvm.org/D22725#493940, @aaron.ballman wrote:

> > Using std::copy opens up the possibility of type-aware optimizations which are not possible with memcpy.
>
>
> To my knowledge, those type-aware optimizations are for transforming copies involving trivially-copyable types into calls to memcpy(). What other optimizations does this check enable?


I might be mistaken, but I understood that a call to std::copy (whether or not specialized for certain types) might get inlined, while a call to memcpy is typically not.


Repository:
  rL LLVM

https://reviews.llvm.org/D22725





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