on 2019/3/11 下午6:24, Richard Biener wrote:
> On Mon, 11 Mar 2019, Kewen.Lin wrote:
>
>> on 2019/3/8 下午6:57, Richard Biener wrote:
>>> On Fri, Mar 8, 2019 at 2:40 AM Kewen.Lin wrote:
Hi,
As PR88497 (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88497),
when we meet some cod
On Mon, 11 Mar 2019, Kewen.Lin wrote:
> on 2019/3/8 下午6:57, Richard Biener wrote:
> > On Fri, Mar 8, 2019 at 2:40 AM Kewen.Lin wrote:
> >>
> >> Hi,
> >>
> >> As PR88497 (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88497),
> >> when we meet some code pattern like:
> >>
> >>V1[0] + V1[1] + ...
on 2019/3/8 下午6:57, Richard Biener wrote:
> On Fri, Mar 8, 2019 at 2:40 AM Kewen.Lin wrote:
>>
>> Hi,
>>
>> As PR88497 (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88497),
>> when we meet some code pattern like:
>>
>>V1[0] + V1[1] + ... + V1[k] + V2[0] + ... + V2[k] + ... Vn[k]
>>// V1...
Hi Kewen,
Just one quick note:
On Fri, Mar 08, 2019 at 09:40:30AM +0800, Kewen.Lin wrote:
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr88497.c
> @@ -0,0 +1,18 @@
> +/* { dg-do compile } */
> +/* { dg-options "-O2 -ffast-math -fdump-tree-reassoc1" } */
> +typedef double v2df __attribute
On Fri, Mar 8, 2019 at 2:40 AM Kewen.Lin wrote:
>
> Hi,
>
> As PR88497 (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88497),
> when we meet some code pattern like:
>
>V1[0] + V1[1] + ... + V1[k] + V2[0] + ... + V2[k] + ... Vn[k]
>// V1...Vn of VECTOR_TYPE
>
> We can teach reassoc to transf
Hi,
As PR88497 (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88497),
when we meet some code pattern like:
V1[0] + V1[1] + ... + V1[k] + V2[0] + ... + V2[k] + ... Vn[k]
// V1...Vn of VECTOR_TYPE
We can teach reassoc to transform it to:
Vs = (V1 + V2 + ... + Vn)
Vs[0] + Vs[1] + ..
