[Bug c++/119954] "a < b < c < d < ..." taking long time to process to generate error message

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119954

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2025-04-28
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |WAITING

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Tried

void foo()
{
  a < b < c < d < e < f < g < h < i < j < k < l < m
}

but that doesn't do it.  Can you provide a testcase?