When the enclosed test case is compiled with -O3, the vectorization code loads
and SSE register with 0x00000001000000010000000100000001 instead of
0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF, then ANDs this with elements of the array. 
This causes the code to fail.


-- 
           Summary: vectorization ANDs array elements together incorrectly
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: Daniel dot Davies at xerox dot com
 GCC build triplet: i386-pc-solaris2.10
  GCC host triplet: i386-pc-solaris2.10
GCC target triplet: i386-pc-solaris2.10


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44507

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