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authorSzabolcs Nagy <nsz@port70.net>2018-11-29 23:33:40 +0000
committerRich Felker <dalias@aerifal.cx>2019-04-17 13:12:08 -0400
commit3c3763fc529114e209aea08336a420c5d5be4dc2 (patch)
tree6ab36f16fb49fa0b92c433b5a9fe080237326f1a /include/unistd.h
parent4f8acf953ccf1a978a3378db7fb1e8d5a7afbca1 (diff)
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math: add macros for static branch prediction hints
These don't have an effectw with -Os so not useful with default settings
other than documenting the expectation.

With --enable-optimize=internal,malloc,string,math the libc.so code size
increases by 18K on x86_64 and performance varies in -2% .. +10%.
Diffstat (limited to 'include/unistd.h')
0 files changed, 0 insertions, 0 deletions