[Bug target/66560] Fails to generate ADDSUBPS

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66560

Uroš Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2015-06-22
           Assignee|unassigned at gcc dot gnu.org      |ubizjak at gmail dot com
     Ever confirmed|0                           |1

--- Comment #1 from Uroš Bizjak <ubizjak at gmail dot com> ---
Created attachment 35827
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35827&action=edit
Patch to imtroduce combiner splitters to allow all possible permutations

This patch introduces combiner splitters to allow all possible permutations of
operators and operands in the addsub pattern.

The splitters canonicalize all patterns to (vec_merge (minus ...) (plus...)
sel) operation.