Add statistics to alias.c

[Bernhard Reutner-Fischer]

On May 21, 2015 12:13:19 AM GMT+02:00, Jan Hubicka <hubicka@ucw.cz> wrote:
>Hi,
>this patch extends statistics from tree-ssa-alias to also cover TBAA
>oracle.
>This is useful to keep track of aliasing effectivity.  For example the
>hack
>in alias.c putting globbing all pointers to one costs about 20% of all
>answers on firefox. I.e. from 15500978 disambiguations/23744267
>querries
>(with the hack removed) to 12932078 disambiguations/27256455 querries.
>
>Bootstrapped x86_64-linux, OK?

s/quaries/queries/
Thanks,