------- Additional Comments From dberlin at gcc dot gnu dot org 2005-05-14
21:39 -------
Subject: Re: FRE does not eliminate a
redundant builtin call.
On Sat, 2005-05-14 at 21:30 +0000, pinskia at gcc dot gnu dot org wrote:
> ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-05-14
> 21:30 -------
> Confirmed, here is another testcase (for -ffast-math):
> double cos (double);
> void link_error();
> void f(double a)
> {
> double b = cos (a);
> double c = cos (a);
> if (b!=c)
> link_error();
> }
>
Yes, we should make the result of a CONST call available, but don't.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21576
