[Bug target/54300] [4.7/4.8 Regression] Erroneous optimization causes wrong Neon data management

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54300

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2012-08-18
   Target Milestone|---                         |4.7.2
     Ever Confirmed|0                           |1

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-08-18 
08:12:11 UTC ---
Your testcase is quite convoluted but it looks you may be violating C
type-based aliasing rules.  Thus, try -fno-strict-aliasing.