Patch drop: fwprop.c patch for neon-strided-load-extract

[Ramana Radhakrishnan]

On 4 January 2012 15:09, Richard Sandiford <richard.sandiford at linaro.org> wrote:
> Ramana Radhakrishnan <ramana.radhakrishnan at linaro.org> writes:
>> On 29 December 2011 10:21, Richard Sandiford
>> <richard.sandiford at linaro.org> wrote:
>>> The remaining change for neon-strided-load-extract is to allow fwprop.c
>>> to propagate:
>>>
>>>    (set (reg X) (subreg (reg Y) N))
>>>
>>> even if no further simplifications are possible.  I posted the original
>>> patch for comments here:
>>>
>>>    http://article.gmane.org/gmane.comp.gcc.patches/246180/
>>>
>>> and fixed the problem that H.J. spotted.  I wasn't entirely happy with
>>> the benchmark results though, so it never became an RFA.
>>
>> When you say you weren't happy with the benchmark results - would you
>> remember if it didn't show
>> any significant improvements or were there significant regressions ?
>
> There were some nice improvements but a couple of regressions.  I don't
> remember the regressions being very big, but they were outside the noise,
> so I wanted to explain them first.

Ok - thanks that's good enough to know.

Ramana
>
> Richard