[Bug tree-optimization/58069] [4.9 Regression] ICE in tree_ssa_unswitch_loops at -O3 in 32 bit mode

[mpolacek at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58069

--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
t.c: In function ‘main’:
t.c:43:5: error: definition in block 13 follows the use
 int main ()
     ^
for SSA_NAME: _117 in statement:
_49 = _117 | _57;
t.c:43:5: internal compiler error: verify_ssa failed
0xaa542c verify_ssa(bool)
    /home/marek/src/gcc/gcc/tree-ssa.c:1046
0x87dbbe execute_function_todo
    /home/marek/src/gcc/gcc/passes.c:1628
0x87e5fc execute_todo
    /home/marek/src/gcc/gcc/passes.c:1660
Please submit a full bug report,
with preprocessed source if appropriate.