tree afa318d98d69f46a353da8fcc02b0317c4c0755c
parent 42506951ea9b46a87e9162e905dd8e572c7d7100
author Petr Hosek <phosek@google.com> 1710293136 -0700
committer Copybara-Service <copybara-worker@google.com> 1710303624 -0700

[libc] Use __builtin_ffsll for RPC lane mask (#85000)

src/__support/GPU/utils.h doesn't compile on a 32-bit platforms because
__builtin_ffsl uses long which is a 32-bit number. Use __builtin_ffsll
which uses long long which is guaranteed to be at least 64-bits.

GitOrigin-RevId: c6a93fe80b3cf30ff82d06e959c1177798c858ae