[Bug tree-optimization/105537] ICE: cannot update SSA form (error: statement uses released SSA name)

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105537

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |marxin at gcc dot gnu.org

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
So it's _another_ case where we have debug stmts but don't expect them.  Again,
-fvar-tracking-assignments seems to enable that despite no debug info.

(gdb) p global_options_set.x_flag_var_tracking_assignments
$1 = 1
(gdb) p global_options.x_flag_var_tracking_assignments
$2 = 0

when we create the debug bind it's

(gdb) p global_options.x_flag_var_tracking_assignments
$1 = -1

so that's likely the

  if (flag_var_tracking_assignments && !flag_var_tracking)
    flag_var_tracking = flag_var_tracking_assignments = -1;

part of finish_options I wondered about when fixing PR105461, but we also
have before that

  if (!opts_set->x_flag_var_tracking_assignments)
    flag_var_tracking_assignments
      = (flag_var_tracking
         && !(flag_selective_scheduling || flag_selective_scheduling2));

so we keep the flag as set but then reset things to -1.

it looks like more failure to use opts->