Re: [rtl, i386] combine concat+permutation

[Marc Glisse <marc dot glisse at inria dot fr>]

Ping
http://gcc.gnu.org/ml/gcc-patches/2012-08/msg00205.html

(Cc: the nice reviewer of the previous patch)

On Fri, 3 Aug 2012, Marc Glisse wrote:

> Hello,
>
> this is a follow up to the patch applied after this discussion:
> http://gcc.gnu.org/ml/gcc-patches/2012-05/msg00504.html
>
> It handles the -mavx __builtin_shuffle case mentioned there.
>
> It passes bootstrap (languages=c,c++) and regtest on x86_64.
>
>
> 2012-08-04  Marc Glisse  <marc.glisse@inria.fr>
>
> gcc/
> 	* simplify-rtx.c (simplify_binary_operation_1): Optimize shuffle of
> 	a concatenation.
>
> gcc/testsuite/
> 	* gcc.target/i386/perm-concat.c: New test.

--
Marc Glisse