9f15ff7c0c76f15f9efc12fa27c8c521a2b19652 - llvm-project/libcxx

commit: 9f15ff7c0c76f15f9efc12fa27c8c521a2b19652
[log]
author: Nikolas Klauser <nikolasklauser@berlin.de>
Tue Aug 04 14:08:28 2026 +0200
committer: Copybara-Service <copybara-worker@google.com>
Tue Aug 04 05:11:25 2026 -0700
tree: 053bcfe0c686576498bde13d6fe7d1144954721b
parent: 8ee929463b22958cf512f7733bfed6bfa9d49322 [diff]

[libc++] Optimize std::swap of locales (#209760)

Currently we copy construct `locale`s whenever we swap, which is quite
expensive for locales since that does atomic increments and decrements.
We can just swap the pointers instead.

GitOrigin-RevId: 61a8d42409f596def8befa1350f79609de08027c

include/__locale[diff]
modules/std/locale.inc[diff]
test/benchmarks/text/localization/ctype.bench.cpp[Renamed from test/benchmarks/locale/ctype.bench.cpp - diff]
test/benchmarks/text/localization/locale.bench.cpp[Added - diff]
test/benchmarks/text/localization/num_get.bench.cpp[Renamed from test/benchmarks/locale/num_get.bench.cpp - diff]
test/benchmarks/text/localization/num_put.bench.cpp[Renamed from test/benchmarks/locale/num_put.bench.cpp - diff]
test/std/localization/locales/locale/locale.nonmembers/swap.pass.cpp[Added - diff]

7 files changed

tree: 053bcfe0c686576498bde13d6fe7d1144954721b