This patch causes regression in one of the Spec2000 benchmarks on
arm-none-linux-gnueabi cortex-a9.
The benchmark 173.applu from CFP2000 dropped performance by about 8% between
revisions 177367 and 177368. Other benchmarks are not affected.
In the assembly generated by the new version, the two m
On Thursday 04 August 2011 13:12:04 Richard Guenther wrote:
> On Thu, 4 Aug 2011, Richard Guenther wrote:
> > On Wed, 3 Aug 2011, Mikael Morin wrote:
> > > Hello,
> > >
> > > On Wednesday 03 August 2011 15:47:37 Richard Guenther wrote:
> > > > Comments? Any idea why reversing the loop would break
On Thu, 4 Aug 2011, Richard Guenther wrote:
> On Wed, 3 Aug 2011, Mikael Morin wrote:
>
> > Hello,
> >
> > On Wednesday 03 August 2011 15:47:37 Richard Guenther wrote:
> > > Comments? Any idea why reversing the loop would break?
> >
> > Yes, the list of scalarized expressions has to be created
On Wed, 3 Aug 2011, Mikael Morin wrote:
> Hello,
>
> On Wednesday 03 August 2011 15:47:37 Richard Guenther wrote:
> > Comments? Any idea why reversing the loop would break?
>
> Yes, the list of scalarized expressions has to be created in the same order
> it
> is consumed. Here the scalarized
Hello,
On Wednesday 03 August 2011 15:47:37 Richard Guenther wrote:
> Comments? Any idea why reversing the loop would break?
Yes, the list of scalarized expressions has to be created in the same order it
is consumed. Here the scalarized expressions are array indexes to be
precomputed out of th
Richard Guenther wrote:
On Wed, 3 Aug 2011, Richard Guenther wrote:
Bootstrap and regtest is currently running on x86_64-unknown-linux-gnu,
the reversed loop one was ok (well, apart from those 2-3 fails).
Re-bootstrapping currently. The previous patch tested ok.
The patch looks OK. I don't k
On Wed, 3 Aug 2011, Richard Guenther wrote:
>
> This fixes PR49957 by keeping the array index into a multi-dimensional
> array in optimal associated form which is ((off + outermost) + ...) +
> innermost) + constant) so that dependence analysis can properly
> handle it. It doesn't work right now
