[all-commits] [llvm/llvm-project] 1890a6: [ADT] use is_base_of inplace of is_same for random...

[Nathan James via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 1890a65ca17504cab4032d3c8cc0c4c568d44717
      https://github.com/llvm/llvm-project/commit/1890a65ca17504cab4032d3c8cc0c4c568d44717
  Author: Nathan James <n.james93 at hotmail.co.uk>
  Date:   2020-07-21 (Tue, 21 Jul 2020)

  Changed paths:
    M llvm/include/llvm/ADT/STLExtras.h

  Log Message:
  -----------
  [ADT] use is_base_of inplace of is_same for random_access_iterator_tag checks

Replace `std::is_same<X, std::random_access_iterator_tag>` with `std::is_base_of<std::random_access_iterator_tag, X>` in STLExtra algos.

This doesn't have too much impact on LLVM internally as no structs derive from it.
However external projects embedding LLVM may use `std::contiguous_iterator_tag` which should be considered by these algorithms.
As well as any other potential tags people want to define derived from `std::random_access_iterator_tag`

Reviewed By: dblaikie

Differential Revision: https://reviews.llvm.org/D84141