tree 606fead47c16123604bca1bc98f1c9a9720e8527
parent dd4432fb02583b7a5b2b4fbf2012f7053e286ce0
author Nico Weber <thakis@chromium.org> 1776194570 -0700
committer Copybara-Service <copybara-worker@google.com> 1776194782 -0700

Roll libc++ from 7ab65651aed6 to cb9c06560a68 (12 revisions)

https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxx.git/+log/7ab65651aed6..cb9c06560a68

2026-01-07 hghristov.rmm@gmail.com [libc++][NFC] Refactor `[[nodiscard]]` tests (#173451)
2026-01-06 hui.xie1990@gmail.com [libc++] Refactor atomic_waitable_traits into its own header and remove pre 20 support (#173157)
2026-01-06 nikolasklauser@berlin.de [libc++][NFC] Assume that __GCC_{CON,DE}STRUCTIVE_SIZE are available (#171625)
2026-01-06 nikolasklauser@berlin.de [libc++] Remove _LIBCPP_HAS_SIZED_DEALLOCATION (#172285)
2026-01-06 nikolasklauser@berlin.de [libc++][NFC] Use lambdas when calling a segmented iterator algorithm (#173345)
2026-01-06 hghristov.rmm@gmail.com [libc++][chrono] Applied `[[nodiscard]]` to clocks, `time_point`, some `hash` specializations (#174120)
2026-01-06 nikolasklauser@berlin.de [libc++] Warn when users request a deployment target below the minimum supported version (#172664)
2026-01-06 david.spickett@linaro.org [libcxx][docs] Note how to use just built libc++ with per-target runtimes layout (#172316)
2026-01-06 hghristov.rmm@gmail.com [libc++][iostream] Applied `[[nodiscard]]` (#173754)
2026-01-06 hghristov.rmm@gmail.com [libc++][atomic] Applied `[[nodiscard]]` (#173962)
2026-01-06 hghristov.rmm@gmail.com [libc++][chrono] Applied `[[nodiscard]]` to `duration` (#174121)
2026-01-06 de34@live.cn [libc++][NFC] Replace tag dispatch with `if constexpr` in `<any>` and `<variant>` (#173538)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/libcxx-chromium
Please CC hans@chromium.org,thakis@chromium.org on the revert to ensure that a human
is aware of the problem.

To file a bug in Chromium: https://bugs.chromium.org/p/chromium/issues/entry

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Tbr: hans@chromium.org,thakis@chromium.org
Change-Id: I8d98177f3186b13e7d6e2ef6e2d4e95e9dd2926f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7407611
Reviewed-by: Hans Wennborg <hans@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1614649}
NOKEYCHECK=True
GitOrigin-RevId: 2ce9387096bd360193299cda5b278447e56749e7