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Subject: [Bug tree-optimization/53265] Warn when undefined behavior implies smaller iteration count
Date: Thu, 31 Jan 2013 12:13:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53265

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-01-31 12:13:24 UTC ---
Another testcase, this time from PR56161 :

void bar (void *);

void
fn6 (void)
{
  double a[4][3], b[12];
  int i;
  bar (b);
  for (i = 0; i < 12; i++)
    a[0][i] = b[i] / 10000.0;
  bar (a);
}