[Bug tree-optimization/71230] [7 Regression] ICE : in zero_one_operation, at tree-ssa-reassoc.c:1230

["Joost.VandeVondele at mat dot ethz.ch" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71230

--- Comment #9 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
(In reply to Richard Biener from comment #8)
> There is another bug in this function remaining.

I indeed see :
bug.f90:47:0:

   SUBROUTINE eri_test (iw,error)

in pp_string, at pretty-print.c:937
0x13e8397 pp_string
        ../../gcc/gcc/pretty-print.c:937
0x13e8397 pp_string(pretty_printer*, char const*)
        ../../gcc/gcc/pretty-print.c:935
0x13e8f16 pp_format(pretty_printer*, text_info*)
        ../../gcc/gcc/pretty-print.c:579
0x13e3de1 diagnostic_report_diagnostic(diagnostic_context*, diagnostic_info*)
        ../../gcc/gcc/diagnostic.c:823
0x13e5645 internal_error(char const*, ...)
        ../../gcc/gcc/diagnostic.c:1258
0x8f88f8 gimple_check_failed(gimple const*, char const*, int, char const*,
gimple_code, tree_code)
        ../../gcc/gcc/gimple.c:1174
0xd671cb GIMPLE_CHECK2<const gassign*>
        ../../gcc/gcc/gimple.h:73
0xd5bab7 zero_one_operation
        ../../gcc/gcc/tree-ssa-reassoc.c:1232
0xd63528 undistribute_ops_list
        ../../gcc/gcc/tree-ssa-reassoc.c:1586
0xd63fb8 reassociate_bb
        ../../gcc/gcc/tree-ssa-reassoc.c:5237

I'll have a look at reducing it.