[Bug target/52568] suboptimal __builtin_shuffle on cycles with AVX

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52568

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-03-15 
23:45:49 UTC ---
Author: jakub
Date: Thu Mar 15 23:45:45 2012
New Revision: 185446

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=185446
Log:
    PR target/52568
    * config/i386/sse.md (UNSPEC_VPERMDF): Remove.
    (avx2_permv4df): Remove.
    (avx2_permv4di): Macroize into...
    (avx2_perm<mode>): ... this using VI8F_256 iterator.
    (avx2_permv4di_1): Macroize into...
    (avx2_perm<mode>_1): ... this using VI8F_256 iterator.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/sse.md