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authorSzabolcs Nagy <nsz@port70.net>2018-12-01 00:40:47 +0000
committerRich Felker <dalias@aerifal.cx>2019-04-17 23:44:59 -0400
commit236cd056e871acb8731cd84b5bfb6f0feb646589 (patch)
treeecdff2e63f92275d44f4d07af01f5e31193c8d1a /src/legacy/utmpx.c
parentd28cd0ad428d63c186003fdf9c02470561650a04 (diff)
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math: new log
from https://github.com/ARM-software/optimized-routines,
commit 04884bd04eac4b251da4026900010ea7d8850edc

Assume __FP_FAST_FMA implies __builtin_fma is inlined as a single
instruction.

code size change: +4588 bytes (+2540 bytes with fma).
benchmark on x86_64 before, after, speedup:

-Os:
   log rthruput:  12.61 ns/call  7.95 ns/call 1.59x
    log latency:  41.64 ns/call 23.38 ns/call 1.78x
-O3:
   log rthruput:  12.51 ns/call  7.75 ns/call 1.61x
    log latency:  41.82 ns/call 23.55 ns/call 1.78x
Diffstat (limited to 'src/legacy/utmpx.c')
0 files changed, 0 insertions, 0 deletions