[libc-commits] [libc] [llvm] [libc][math] Refactored atanpif16 to header only (PR #184316)

[via libc-commits]

zimmermann6 wrote:

I get a spurious underflow:
```
zimmerma at biscotte:~/svn/core-math$ CORE_MATH_CHECK_STD=true LIBM=$L ./check.sh atanpif16
Running exhaustive check in --rndn mode...
all ok
Running exhaustive check in --rndz mode...
all ok
Running exhaustive check in --rndu mode...
Spurious underflow exception for x=0x1.92p-13 (y=0x1p-14)
```

https://github.com/llvm/llvm-project/pull/184316