On 03/15/12 13:09, Jakub Jelinek wrote:
> Hi!
>
> As noted in the PR, we can vectorize e.g. V4DFmode
> __builtin_shuffle (, {1, 2, 3, 0}) in 3 insns, some intra-lane
> permutation, followed by swapping of the lanes (vperm2f128) and
> finally vblend{pd,ps} that merges in the registers with non-swapped
> and swapped lanes.
>
> Bootstrapped/regtested on x86_64-linux and i686-linux, tested
> additionally with
> GCC_TEST_RUN_EXPENSIVE=1 make check-gcc
> RUNTESTFLAGS='--target_board=unix\{-m32/-mavx,-m64/-mavx\}
> dg-torture.exp=vshuf*'
> Ok for trunk?
>
> 2012-03-15 Jakub Jelinek <ja...@redhat.com>
>
> PR target/52568
> * config/i386/i386.c (expand_vec_perm_vperm2f128_vblend): New
> function.
> (ix86_expand_vec_perm_const_1): Use it.
>
> * gcc.dg/torture/vshuf-4.inc: Add two new tests.
> * gcc.dg/torture/vshuf-8.inc: Likewise.
> * gcc.dg/torture/vshuf-16.inc: Likewise.
> * gcc.dg/torture/vshuf-32.inc: Likewise.
Ok.
r~
