On 10 January 2016 at 13:15, Thomas Schwinge wrote:
> Hi!
>
> On Fri, 8 Jan 2016 11:30:16 +, Alan Lawrence
> wrote:
>> Here's an alternative patch, [...]
>
>> +/* { dg-final { scan-tree-dump "note: Built SLP cancelled: can use
>> load/store-lanes" { target { vect_perm && vect_load_lanes }
Hi!
On Fri, 8 Jan 2016 11:30:16 +, Alan Lawrence wrote:
> Here's an alternative patch, [...]
> +/* { dg-final { scan-tree-dump "note: Built SLP cancelled: can use
> load/store-lanes" { target { vect_perm && vect_load_lanes } } } } */
For all these, you're missing to provide the "suffix" i
On 08/01/16 11:45, Richard Biener wrote:
> On Fri, 8 Jan 2016, Alan Lawrence wrote:
>
>> Here's an alternative patch, using the hunk from
>> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68707#c16, which 'improves'
>> (heh,
>> we think) on the previous by allowing SLP to proceed where the loads ar
On Fri, 8 Jan 2016, Alan Lawrence wrote:
> Here's an alternative patch, using the hunk from
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68707#c16, which 'improves' (heh,
> we think) on the previous by allowing SLP to proceed where the loads are
> strided, for example, slp-perm-11.c. Also I fix
Here's an alternative patch, using the hunk from
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68707#c16, which 'improves' (heh,
we think) on the previous by allowing SLP to proceed where the loads are
strided, for example, slp-perm-11.c. Also I fix the testsuite failures (looking
for SLP where we'v
On 17/12/15 10:46, Richard Biener wrote:
On Thu, 17 Dec 2015, Alan Lawrence wrote:
On 16/12/15 15:01, Richard Biener wrote:
The following patch adds a heuristic to prefer store/load-lanes
over SLP when vectorizing. Compared to the variant attached to
the PR I made the STMT_VINFO_STRIDED_P be
On Thu, 17 Dec 2015, Alan Lawrence wrote:
> On 16/12/15 15:01, Richard Biener wrote:
> >
> > The following patch adds a heuristic to prefer store/load-lanes
> > over SLP when vectorizing. Compared to the variant attached to
> > the PR I made the STMT_VINFO_STRIDED_P behavior explicit (matching
>
On 16/12/15 15:01, Richard Biener wrote:
The following patch adds a heuristic to prefer store/load-lanes
over SLP when vectorizing. Compared to the variant attached to
the PR I made the STMT_VINFO_STRIDED_P behavior explicit (matching
what you've tested).
Not sure I follow this. Compared to t
The following patch adds a heuristic to prefer store/load-lanes
over SLP when vectorizing. Compared to the variant attached to
the PR I made the STMT_VINFO_STRIDED_P behavior explicit (matching
what you've tested).
It's a heuristic that may end up vectorizing less loops or loops
in a less optima
