foo.c: In function 'main':
foo.c:11:36: warning: iteration 9999 invokes undefined behavior [-Waggressive-loop-optimizations]
   11 |                 m[i + 2] = m[i] + m[i + 1];
      |                                   ~^~~~~~~
foo.c:9:23: note: within this loop
    9 |         for (i = 0; i < 10000; i++)
      |                     ~~^~~~~~~

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