On Mon, Sep 30, 2013 at 5:26 PM, Xinliang David Li <[email protected]> wrote:
> Yes, that will do. Can you do it for me? I can't do testing easily
> on arm myself.
It also fails on x86_64 with -m32. I always test on x86_64 with
multilibs enabled:
make -k -j12 check RUNTESTFLAGS="--target_board=unix/\{,-m32\}"
Richard.
> thanks,
>
> David
>
>
>
>
> On Mon, Sep 30, 2013 at 3:29 AM, Kyrill Tkachov <[email protected]>
> wrote:
>> Hi Richard, David,
>>
>>> In principle yes. Note that it changes the behavior of -O2
>>> -ftree-vectorize
>>> as -ftree-vectorize does not imply changing the default cost model. I am
>>> fine with that, but eventually this will have some testsuite fallout.
>>
>> Indeed I am observing a regression with this patch on arm-none-eabi in
>> gcc.dg/tree-ssa/gen-vect-26.c.
>>
>> Seems that the cheap vectoriser model doesn't do unaligned stores (as
>> expected I think?). Is adding -fvect-cost-model=dynamic to the test options
>> the correct approach?
>>
>>
>> Thanks,
>> Kyrill
>>
>>
