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[Bug target/61431] New: Powerpc tests pack01.c and p8vector-int128-2.c fail on little endian power8 systems


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61431

            Bug ID: 61431
           Summary: Powerpc tests pack01.c and p8vector-int128-2.c fail on
                    little endian power8 systems
           Product: gcc
           Version: 4.10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: meissner at gcc dot gnu.org
              Host: powerpc64le-linux
            Target: powerpc64le-linux
             Build: powerpc64le-linux

The pack01.c test fails on GCC 4.8 on little endian power8 systems. In looking
at it, it is a latent bug where the V1TI memory operations do not have the word
swapping define_split support.  GCC 4.9 and trunk can optimize the union to
stay in a register, so the test case passes on those systems, but it is still a
bug that would be exposed if you ever need to store vector __int128 values. 
The test p8vector-int128-2.c is such a case, and it needs the fix.


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