File: pr35356-1.c

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gcc-riscv64-unknown-elf 8.3.0.2019.08%2Bdfsg-1
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/* { dg-options "-O2 -fgraphite-identity -fdump-tree-graphite-all" } */

int a[100];

int
foo (int bar, int n, int k)
{
  int i;

  for (i = 0; i < n; i++)
    if (i == k)
      a[i] = bar;

  for (i = 0; i < n; i++)
    if (i == k)
      a[i] = bar;

  return a[bar];
}

/* There should be no loops generated for this testcase, instead we
   should generate the following:

   | if (k >= 0 && k < n)
   |   a[k] = bar;

   Check that this text is produced:

AST generated by isl:
if (n >= k + 1 && k >= 0) {
  S_6(k);
  S_11(k);
}

*/

/* { dg-final { scan-tree-dump "if \\\(P_\[0-9\]+ >= P_\[0-9\]+ \\\+ 1 && P_\[0-9\]+ >= 0\\\) \\\{" "graphite" } } */