[Bug tree-optimization/69823] New: internal compiler error: in create_pw_aff_from_tree, at graphite-sese-to-poly.c:445

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69823

            Bug ID: 69823
           Summary: internal compiler error: in create_pw_aff_from_tree,
                    at graphite-sese-to-poly.c:445
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ktkachov at gcc dot gnu.org
                CC: spop at gcc dot gnu.org
  Target Milestone: ---
            Target: aarch64

The following testcase ICEs for me on aarch64 at -O3 -floop-interchange:

int a, d, e, f;
int b[1];
int c[50];
void
fn1 ()
{
  for (; d;)
    for (; d; d++)
      {
        f = b[e] || a % e;
        c[1] = c[e];
      }
}

mycrash.c: In function 'fn1':
mycrash.c:5:1: internal compiler error: in create_pw_aff_from_tree, at
graphite-sese-to-poly.c:445
 fn1 ()
 ^~~
0x106b5aa create_pw_aff_from_tree
        $TOP/gcc/graphite-sese-to-poly.c:445
0x106be73 add_condition_to_pbb
        $TOP/gcc/graphite-sese-to-poly.c:458
0x106be73 add_conditions_to_domain
        $TOP/gcc/graphite-sese-to-poly.c:525
0x106be73 build_iteration_domains
        $TOP/gcc/graphite-sese-to-poly.c:1017
0x106c0df build_iteration_domains
        $TOP/gcc/graphite-sese-to-poly.c:1040
0x106ca99 build_poly_scop(scop*)
        $TOP/gcc/graphite-sese-to-poly.c:1364
0x1056e2e graphite_transform_loops()
        $TOP/gcc/graphite.c:319
0x1056fa6 graphite_transforms
        $TOP/gcc/graphite.c:356
0x1056fa6 execute
        $TOP/gcc/graphite.c:433
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Please include the complete backtrace with any bug report.
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