remove obsolete i386 MD memchr implementation
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Authored by emaste on Sep 25 2019, 1:59 PM.

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markj
kib

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rS352689: remove obsolete i386 MD memchr implementation

Summary

bde reports:

This uses scasb, which was last optimal on the 8086, or perhaps the
original i386.  On freefall, it is several times slower than the
naive translation of the naive C code.

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Repository

rS FreeBSD src repository - subversion

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Event Timeline

emaste created this revision.Sep 25 2019, 1:59 PM

kib accepted this revision.Sep 25 2019, 2:35 PM

This revision is now accepted and ready to land.Sep 25 2019, 2:35 PM

markj accepted this revision.Sep 25 2019, 2:48 PM

Closed by commit rS352689: remove obsolete i386 MD memchr implementation (authored by emaste). · Explain WhySep 25 2019, 4:49 PM

This revision was automatically updated to reflect the committed changes.

emaste added a commit: rS352689: remove obsolete i386 MD memchr implementation.

Herald added a subscriber: imp. · View Herald TranscriptSep 25 2019, 4:49 PM

Revision Contents
Changeset List

Path

Size

head/

lib/

libc/

i386/

string/

Makefile.inc

1 line

memchr.S

61 lines

Diff 62551

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head/lib/libc/i386/string/Makefile.inc