Roll libc++ from 99457fa55579 to be1c391acca0 (4 revisions) https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxx.git/+log/99457fa55579..be1c391acca0 2026-04-29 jtstogel@gmail.com [libc++] Allow building libc++ using llvm-libc without locale support (#187603) 2026-04-29 thakis@chromium.org [libcxx] Remove NODEBUG, ALWAYS_INLINE from __swap_layouts (#194931) 2026-04-29 haowei@google.com [libcxx][lit] Fixing libcxx test failures on Windows (#194752) 2026-04-29 wtranviet@proton.me [libc++] Disable mistakenly enabled `optional<T&>` constructors for `optional<T>` (#194446) 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 Change-Id: Iba1f7275c5b79e2f2240897b7016ec9f731ccc52 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7804861 Reviewed-by: Hans Wennborg <hans@chromium.org> Commit-Queue: Nico Weber <thakis@chromium.org> Cr-Commit-Position: refs/heads/main@{#1623800} NOKEYCHECK=True GitOrigin-RevId: 1e20b7a387e10b9fe76f230af7231a529ea1b7ee