[Bug rtl-optimization/56766] Fails to combine (vec_select (vec_concat ...)) to (vec_merge ...)

[rguenther at suse dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56766

--- Comment #17 from rguenther at suse dot de <rguenther at suse dot de> ---
On Thu, 11 Jun 2015, ubizjak at gmail dot com wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56766
> 
> --- Comment #16 from Uroš Bizjak <ubizjak at gmail dot com> ---
> (In reply to Richard Biener from comment #8)
> > No.
> 
> [...]
> 
> > That was why I was suggesting to add additional patterns rather than
> > replacing the existing ones...
> 
> So, there is no other way than using "the ugly" patch that adds missing
> patterns.
> 
> Please try the patch, attached in the message above.

That works.