[Bug c/85608] ubsan in cse.c:2194

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85608

--- Comment #4 from David Binderman <dcb314 at hotmail dot com> ---
Still going wrong in revision 270500. Here is a stack backtrace:

../../trunk/gcc/cse.c:2215:34: runtime error: signed integer overflow: 1 -
-9223
372036854775807 cannot be represented in type 'long int'
    #0 0x4e5f416 in use_related_value ../../trunk/gcc/cse.c:2215
    #1 0x4e5f416 in cse_insn ../../trunk/gcc/cse.c:4877
    #2 0x4e60b7e in cse_extended_basic_block ../../trunk/gcc/cse.c:6662
    #3 0x4e60b7e in cse_main ../../trunk/gcc/cse.c:6841
    #4 0x4e67ef5 in rest_of_handle_cse ../../trunk/gcc/cse.c:7678