[Bug tree-optimization/106126] tree check fail in useless_type_conversion_p, at gimple-expr.cc:87

[dcb314 at hotmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106126

--- Comment #2 from David Binderman <dcb314 at hotmail dot com> ---
Reduced C code seems to be

char *var_1;
void pool_conda_matchspec() {
  for (; var_1 && *var_1 &&
         *var_1 != '<' && *var_1 != '>' &&
         *var_1 != '!' && *var_1 != '~';)
    if (*var_1 >= 'A' && *var_1 <= 'Z')
      *var_1 += 'A';
}