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authorSzabolcs Nagy <nsz@port70.net>2016-12-17 15:03:24 +0100
committerRich Felker <dalias@aerifal.cx>2016-12-17 18:16:43 -0500
commit61ff1af76f4887bb7c555e4d0b8a7eeb73b05086 (patch)
tree516b3dc5144298b7b50f71eed3cc139c602e6249 /src/malloc/posix_memalign.c
parent7a4c25d78030b3a43ed5c8dd1a456f73cb990f44 (diff)
downloadmusl-61ff1af76f4887bb7c555e4d0b8a7eeb73b05086.tar.gz
use lookup table for malloc bin index instead of float conversion
float conversion is slow and big on soft-float targets. The lookup table increases code size a bit on most hard float targets (and adds 60byte rodata), performance can be a bit slower because of position independent data access and cpu internal state dependence (cache, extra branches), but the overall effect should be minimal (common, small size allocations should be unaffected).
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