[PATCH] AVX2 permutation improvements

[Richard Henderson]

On 03/20/12 04:22, Jakub Jelinek wrote:
> 2012-03-20  Jakub Jelinek  <jakub@redhat.com>
> 
> 	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.

Ok.


r~