Why is std.math slower than the C baseline?

[kinke]

On Thursday, 4 June 2020 at 17:41:06 UTC, H. S. Teoh wrote:
>> We are mostly just waiting for the *overloads* to finally make 
>> it
>> upstream (e.g., blocked 
>> https://github.com/dlang/phobos/pull/7463), so
>> that we can finally enable the commented-out LLVM intrinsics 
>> (e.g.,
>> https://github.com/ldc-developers/phobos/blob/26fac3b399c62ead78bedce7ccba9290a2cbbbf3/std/math.d#L4304-L4307).
> [...]
>
> What's blocking the Phobos PR?  Actual issues, or just inertia 
> like much of the Phobos PR queue?

The reason is one click away, in the PR description. ;) - A 
3rd-party project tested by BuildKite needs a new release 
(already adapted).