https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69526

--- Comment #7 from rdapp at linux dot vnet.ibm.com ---
(In reply to amker from comment #6)

> It comes from loop niter analysis, as in may_eliminate_iv, we have:
> 
> (gdb) call debug_generic_expr(desc->niter)
> n_5(D) + 4294967295

and this is correct? I.e. the number of iterations is n - 1? I'd naively expect 
  desc->niter = n_5(D)

(Again, it might be necessary for some reason escapes me currently)

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