https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99277
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
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Target Milestone|12.4 |12.0
--- Comment #14 from Jonathan Wakely <redi at gcc dot gnu.org> ---
For the record ...
(In reply to Thiago Macieira from comment #0)
> Here's a summary of the findings:
>
> 1) everything is inline
No change here yet, it's intentional that nothing has been added to the library
for now.
> 2) futex code is still behind a lot of code calling into std::_Hash_bytes
That changed with r12-10-gb52aef3a8cbcc8
> 3) other int-sized (incl. enums) atomics don't use futex
So did that.
> 4) std::latch and std::counting_semaphore defaults preclude from using
> futex on Linux
And that.
> 5) std::barrier implementation also uses a type that futex(2) can't handle
barrier still uses a 1-byte enum for the atomic waits.
