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

[hjl.tools at gmail dot com]

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

--- Comment #16 from H.J. Lu <hjl.tools at gmail dot com> 2011-08-03 02:40:05 UTC ---
The fundamental question is what the actual address for
(symbol FOO + const_int Y), where the numerical value of
(symbol FOO + const_int Y) is outside of [0 - (2 to the power
of hardware address bits) - 1], should be. I believe the
answer should be "implementation defined" and programs which
depend on certain behavior are broken.