[Bug tree-optimization/41244] "&data[i] - data" isn't converted to "i"

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=41244

--- Comment #10 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 55303
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55303&action=edit
Better patch

This is a better patch, operand_equal_p already does the integer cst check too.