https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59874
Sam James <sjames at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |sjames at gcc dot gnu.org
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=112789
--- Comment #18 from Sam James <sjames at gcc dot gnu.org> ---
(In reply to Allan Jensen from comment #8)
> Thanks that looks good. I will test it when I have a chance. I am changing
> the Qt sources to not assume the presence of __builtin_clzs when __BMI__ is
> defined. It can use __builtin_clz() and __builtin_ctz()-16U instead, but for
> general compatibility it is nice that GCC also keeps it around.
>
> Note, it would be even better though if GCC could support the short forms as
> generic builtins. That changes the semantics slightly, but they are named so
> similarly to the clz, clzl and clzll it would be easy to assume they also
> are generics, with similar semantics, and can work across all targets.
>
GCC 14 will have __builtin_clzg, if you want to start using that:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112789#c4.
