[Bug tree-optimization/69368] [6 Regression] spec2006 test case 416.gamess fails with the g++ 6.0 compiler starting with r232508

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69368

--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Note the dead code is there since r204391.  Perhaps we need goto done; vs. goto
done2;, so that for MEM_REF/TARGET_MEM_REF we bypass this check?