[Bug tree-optimization/36293] New: ICE or wrong code in vector-strided gap tests

["janis at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

This patch:

    http://gcc.gnu.org/viewcvs?view=rev&rev=135290

    r135290 | irar | 2008-05-14 12:28:53 +0000 (Wed, 14 May 2008)

causes the following test failures on powerpc64-linux with both -m32 and -m64:

FAIL: gcc.dg/vect/vect-strided-a-u8-i8-gap2.c (internal compiler error)
FAIL: gcc.dg/vect/vect-strided-u8-i8-gap2.c (internal compiler error)
FAIL: gcc.dg/vect/vect-strided-u8-i8-gap4.c execution test

There are additional failures reported for the first two but those are because
the ICE prevents other checks from happening.

The ICE message from last night's build is:

/home/gccbuild/gcc_trunk_anonsvn/gcc/gcc/testsuite/gcc.dg/vect/vect-strided-a-u8-i8-gap2.c:
In function 'main1':
/home/gccbuild/gcc_trunk_anonsvn/gcc/gcc/testsuite/gcc.dg/vect/vect-strided-a-u8-i8-gap2.c:22:
internal compiler error: in vect_get_vec_def_for_operand, at
tree-vect-transform.c:1924


-- 
           Summary: ICE or wrong code in vector-strided gap tests
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: janis at gcc dot gnu dot org
GCC target triplet: powerpc*-*-linux*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36293