[Bug middle-end/50448] [4.3/4.5/4.6/4.7 Regression] Missed optimization accessing struct component with integer address

[gjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50448

Georg-Johann Lay <gjl at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|target                      |middle-end
      Known to work|                            |3.4.6
            Summary|[avr] Missed optimization   |[4.3/4.5/4.6/4.7
                   |accessing struct component  |Regression] Missed
                   |with integer address        |optimization accessing
                   |                            |struct component with
                   |                            |integer address
      Known to fail|                            |4.7.0

--- Comment #1 from Georg-Johann Lay <gjl at gcc dot gnu.org> 2011-09-29 15:55:05 UTC ---
As explained in http://gcc.gnu.org/ml/gcc/2011-09/msg00353.html this looks like
a middle-end flaw during tree -> RTL lowering in
explow.c:memory_address_addr_space() where the target cannot do anything about.

Changed component from TARGET to MIDDLE-END.