Yes, that will do. Can you do it for me? I can't do testing easily on arm myself.
thanks, David On Mon, Sep 30, 2013 at 3:29 AM, Kyrill Tkachov <kyrylo.tkac...@arm.com> 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 > >
