Remo

cbrt(x) support?

5

Currently ISPC does not support cube root: https://godbolt.org/z/338aeEr89 . Would it be possible to add cbrt support to ISPC ?

Redundant use of dfadd_f2_f2_f ?

1

https://github.com/shibatch/sleef/blob/85440a5e87dae36ca1b891de14bc83b441ae7c43/src/libm/sleefsp.c#L1031 This line can be simplified to `if (!o && d < 0) r = 3.1415927410125732422f - r;`

xsignbitf(double d)

2

https://github.com/shibatch/sleef/blob/85440a5e87dae36ca1b891de14bc83b441ae7c43/src/libm/sleefsp.c#L71 `int xsignbitf(double d)` should probably use float instate of double.

Poor results for sqrt(x * x + y * y)

12

Results for naive hypot function are pretty strange. https://herbie.uwplse.org/demo/beffe884b924ebd9b2264b60006ab037dded11c5.b9fb4a99a678c42719f1af4df2435bfd560a1c86/graph.html#reproduce The same applies to hypot with 3 parameters: sqrt(x*x+y*y+z*z). https://herbie.uwplse.org/demo/92fcb878d8333bea9340b8c6ad6e0dfc5d1ef52f.b9fb4a99a678c42719f1af4df2435bfd560a1c86/graph.html#reproduce

[Feature] Ternary functions?

3

It would be great if arity 3 function would be supported! For example clamp(a,b,c), ifelse(c, t, f), powermod(x, p, m) and so on. How hard it would be to support...

Is FEMFX dead?

4

Can we expect any further development on FEMFX?