[Bug tree-optimization/25481] [4.2 Regression] Segfault in tree-ssa-structalias.c

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2005-12-18 17:43 -------
We're hitting the assert at

#1  0x0856ac47 in handle_ptr_arith (lhsc=0x8868880, expr=0x401942d0)
    at tree-ssa-structalias.c:3188

            gcc_assert (first_vi_for_offset (temp, rhsoffset) != NULL);

with temp being the array of size 32 and rhsoffset being 32.  We're taking
the address of a[1] which is valid.  We should just ignore this here and
continue.

I will prepare and test a patch.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25481