Why is std.math slower than the C baseline?

[H. S. Teoh]

On Thu, Jun 04, 2020 at 05:16:04PM +0000, kinke via Digitalmars-d wrote:
> On Thursday, 4 June 2020 at 17:04:54 UTC, H. S. Teoh wrote:
> > Would LDC consider providing float/double overloads for std.math
> > functions?  Ideally this would be merged upstream, but sometimes if
> > there's no other way to get things done...
> 
> 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?  I think we should push this through somehow.
Like you said, it has been years, and prolonging this is only hurting
rather than helping things.


T

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