[Bug target/52607] v4df __builtin_shuffle with {0,2,1,3} or {1,3,0,2}

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52607

--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-03-20 
16:26:08 UTC ---
Author: jakub
Date: Tue Mar 20 16:25:54 2012
New Revision: 185577

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=185577
Log:
    PR target/52607
    * config/i386/i386.md ("isa" attribute): Add avx2 and noavx2.
    ("enabled" attribute): Handle avx2 and noavx2 isas.
    * config/i386/sse.md (avx2_vec_dupv8sf_1, avx2_pbroadcast<mode>_1):
    New insns.
    (vec_dup<mode>): Add avx2 =x,x alternative.
    (vec_dup<mode> splitter): Don't split if TARGET_AVX2.
    (*avx_vperm_broadcast_<mode>): Don't split V4DFmode if TARGET_AVX2.
    For TARGET_AVX2, V8SFmode and elt == 0 split into vbroadcastss.
    * config/i386/i386.c (expand_vec_perm_pshufb): Emit also vpermps
    for V8SFmode.
    (expand_vec_perm_1): For broadcasts, use avx2_pbroadcast<mode>_1
    if possible, handle also V8SFmode.

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