James Hirschorn writes:
> I guess "fold" means do the computation at compile time?
Yes.
> No, it is being called with a variable. That is interesting that libc has a
> gamma function. I will have to track down the implementation ...
I believe it is here:
http://sourceware.org/git/?p=glibc.git
On 11/15/2011 06:07 AM, James Hirschorn wrote:
> I have noticed that the builtin gamma function is very accurate and
> extremely fast. Can someone tell me where to find the source code for the
> implementation?
Probably sysdeps/ieee754/dbl-64/e_lgamma_r.c
> gdb skips over the call to the builtin
nce Taylor [mailto:i...@google.com]
Sent: Tuesday, November 15, 2011 1:58 AM
To: James Hirschorn
Cc: gcc@gcc.gnu.org; james.hirsch...@gmail.com
Subject: Re: builtin gamma function
James Hirschorn writes:
I have noticed that the builtin gamma function is very accurate and
extremely fast. Can so
t: Tuesday, November 15, 2011 1:58 AM
To: James Hirschorn
Cc: gcc@gcc.gnu.org; james.hirsch...@gmail.com
Subject: Re: builtin gamma function
James Hirschorn writes:
> I have noticed that the builtin gamma function is very accurate and
> extremely fast. Can someone tell me where to find the sou
James Hirschorn writes:
> I have noticed that the builtin gamma function is very accurate and
> extremely fast. Can someone tell me where to find the source code for the
> implementation?
Are you calling it on a constant? Because gcc will fold gamma applied
to a constant which meets certain cha
