[Bug tree-optimization/64091] [5 Regression] ICE in update_debug_stmt, at tree-ssa-tail-merge.c:1620

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64091

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |rguenth at gcc dot 
gnu.org

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Ah, if we previously had multiple uses on the stmt we break the iterator
by doing

      gimple_debug_bind_reset_value (stmt);
      update_stmt (stmt);

but not terminating the walk.  Testing a fix.