tree 5b070fe0e14387a1ad5356f6db74f146fbdaa960
parent 7eba071f0d5ee45af77b2a3f332905af3c2c15b3
author Ilya Tokar <tokarip@google.com> 1612980319 -0500
committer Copybara-Service <copybara-worker@google.com> 1613725578 -0800

[libc++] Use builtins in more math.h functions.

Not using builtins doesn't always imply worse code,
but for e. g. isinf, this is 30%+ faster.

Before:
name        time/op
BM_isinf     2.14ns ± 2%

After:
name        time/op
BM_isinf     1.33ns ± 2%

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D88854

GitOrigin-RevId: c81d52997ac0d1206ea0fd4935964f4c8661daed