[Bug target/52055] load of 64-bit pointer reads 64 bits even when only 32 are used

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52055

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |missed-optimization
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2012-01-31
     Ever Confirmed|0                           |1

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-01-31 
10:56:23 UTC ---
Confirmed.  It's valid to shorten the load for aligned i, it would not be
valid if it were a read from a possibly unaligned memory (it might trap
with 64bit size but not with 32bit).