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[Bug target/27077] [x86, 4.1] builtin strlen poor performance
- From: "christophe dot jaillet at wanadoo dot fr" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 1 Jun 2006 21:37:45 -0000
- Subject: [Bug target/27077] [x86, 4.1] builtin strlen poor performance
- References: <bug-27077-3157@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from christophe dot jaillet at wanadoo dot fr 2006-06-01 21:37 -------
On my AMD Athlon and current HEAD and, I have other results, i.e. 2 or 3 times
FASTER :
(using your 19 bytes long 'aaa..' string)
string from
length builtin library
(-O2) (-fno-builtin -O2)
----------------------------------------
19 0.484 1.172
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27077