https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88361

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---

 is executed at most 19 (bounded by 19) + 1 times in loop 1.
Analyzing # of iterations of loop 1
  exit condition [19, + , 4294967295] != 0
  bounds on difference of bases: -19 ... -19
  result:
    # of iterations 19, bounded by 19
Loop 1 iterates 19 times.
Loop 1 iterates at most 19 times.
Loop 1 likely iterates at most 19 times.
Not unrolling loop 1 (--param max-completely-peel-times limit reached).

Increasing the param allows the loop to be unrolled.

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