[Bug middle-end/78501] [7 regression] SEGV in vrp_val_max

[prathamesh3492 at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78501

--- Comment #13 from prathamesh3492 at gcc dot gnu.org ---
Created attachment 40137
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40137&action=edit
check precision of ptrdiff_type_node and lhs type is equal

Hi Jakub,
Thanks for the suggestion. Does this patch (stage-1 built) look OK ?
However the tests pr78153-1.c and pr78153-2.c are bound to fail
if type_precision (ptrdiff_t) != type_precision (size_t).
What effective target check should I add to skip the test for targets like VMS
where the precisions would be different ?

Thanks,
Prathamesh