[libc++] Require C++20 to build the benchmarks.
authorMark de Wever <koraq@xs4all.nl>
Thu, 4 Feb 2021 17:35:26 +0000 (18:35 +0100)
committerMark de Wever <koraq@xs4all.nl>
Tue, 9 Feb 2021 17:34:07 +0000 (18:34 +0100)
commit34acc91642440b8e4bad17acfdbb1314c8f2043e
tree22927a2a7f36b0eec10175f03850bcea46a94ca9
parent2544060e718098c2cf736e2667ee007fbc58da50
[libc++] Require C++20 to build the benchmarks.

Some work-in-progress patches for the format header contain benchmarks.
The format header requires C++20 to build. This is a preparation to make
it easy to add these benchmarks.

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D96057
libcxx/benchmarks/CMakeLists.txt
libcxx/docs/ReleaseNotes.rst