[Bug middle-end/49721] convert_memory_address_addr_space may generate invalid new insns

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=49721

--- Comment #31 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I cannot reproduce the original bug with the patch in comment #26 reverted.