[PATCH][4/4] SLP induction vectorization

Michael Meissner meissner@linux.vnet.ibm.com
Wed Jun 7 04:17:00 GMT 2017


On Tue, Jun 06, 2017 at 09:38:04AM +0200, Richard Biener wrote:
> On Sat, 3 Jun 2017, Richard Biener wrote:
> 
> > On June 3, 2017 1:38:14 AM GMT+02:00, Michael Meissner <meissner@linux.vnet.ibm.com> wrote:
> > >On Fri, Jun 02, 2017 at 03:22:27PM +0200, Richard Biener wrote:
> > >> 
> > >> This implements vectorization of SLP inductions (in the not outer
> > >loop
> > >> vectorization case for now).
> > >> 
> > >> Bootstrapped and tested on x86_64-unknown-linux-gnu.
> > >> 
> > >> More testing is appreciated, I'm throwing it at SPEC2k6 now.
> > >
> > >I was going to apply to the PowerPC and do a spec run but the patch for
> > >tree-vect-loop.c doesn't apply.  Could you regenerate the patch, and
> > >also tell
> > >me the subversion id it is based off of?
> > 
> > Hum, it should apply cleanly (maybe one rejected hunk that I already 
> > committed separately).  I'll double check on Tuesday.
> 
> My SPEC 2k6 testing went ok and I've committed the patch as r248909
> now.

FWIW, I saw no significant differeneces in Spec 2006 CPU on a little endian
power8 system comparing spec built with GCC svn id 248908 and 248909 using the
same switches and libraries.

-- 
Michael Meissner, IBM
IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA
email: meissner@linux.vnet.ibm.com, phone: +1 (978) 899-4797



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