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Re: Subject: single-precision "expf" super slow on x86-64??
On Sat, Apr 28, 2012 at 10:38 PM, Miles Bader <email@example.com> wrote:
>> This has very likely been fixed by
> Was there previously an optimized version of "exp", but not "expf"
> (since "exp" is already much faster)?
You can trivially answer that yourself, e.g.
gdb -q /lib/libm.so.6
Reading symbols from /lib/libm.so.6...Reading symbols from
(gdb) list exp
18 ../sysdeps/ieee754/dbl-64/w_exp.c: No such file or directory.
Now look at history of w_exp.c: