[Bug tree-optimization/14541] [tree-ssa] built-in math functions are not fully optimized at tree level

[rguenther at suse dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=14541

--- Comment #20 from rguenther at suse dot de <rguenther at suse dot de> ---
On Mon, 8 Dec 2014, ktkachov at gcc dot gnu.org wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=14541
> 
> ktkachov at gcc dot gnu.org changed:
> 
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                  CC|                            |ktkachov at gcc dot gnu.org
> 
> --- Comment #19 from ktkachov at gcc dot gnu.org ---
> (In reply to Richard Biener from comment #18)
> > Author: rguenth
> > Date: Wed Dec  3 11:55:14 2014
> > New Revision: 218308
> > 
> > URL: https://gcc.gnu.org/viewcvs?rev=218308&root=gcc&view=rev
> > Log:
> > 2014-12-03  Richard Biener  <rguenther@suse.de>
> > 
> > 	PR middle-end/14541
> > 	* builtins.c (fold_builtin_logarithm): Implement simplifications ...
> > 	* match.pd: ... here as patterns.
> > 
> > Modified:
> >     trunk/gcc/ChangeLog
> >     trunk/gcc/builtins.c
> >     trunk/gcc/match.pd
> 
> With this commit the builtin-explog-1.c test stops folding the builtins on
> aarch64 (and consequently FAILs)

Which one exactly?  That is, what is the failing link output?