tree 9875c704604462787efb1bd1b6189956e136861b
parent 2e4d78f55fe6e98d81246d3c65dda3bdb6955f7e
author Tue Ly <lntue@google.com> 1659362249 -0400
committer Copybara-Service <copybara-worker@google.com> 1659708057 -0700

[libc] Implement sincosf function correctly rounded to all rounding modes.

Refactor common range reductions and evaluations for sinf, cosf, and
sincosf.  Added exhaustive tests for sincosf.

Performance before the patch:
```
System LIBC reciprocal throughput : 30.205
LIBC reciprocal throughput        : 30.533

System LIBC latency : 67.961
LIBC latency        : 61.564
```
Performance after the patch:
```
System LIBC reciprocal throughput : 30.409
LIBC reciprocal throughput        : 20.273

System LIBC latency : 67.527
LIBC latency        : 61.959
```

Reviewed By: orex

Differential Revision: https://reviews.llvm.org/D130901

GitOrigin-RevId: 131dda9acc6978aba4740d75ca45f411fbabd726