gcc/testsuite/gcc.dg/graphite/interchange-9.c

   1 /* { dg-require-effective-target size32plus } */
   2
   3 #define DEBUG 0
   4 #if DEBUG
   5 #include <stdio.h>
   6 #endif
   7
   8 #define N 1111
   9 #define M 1111
  10
  11 static int __attribute__((noinline))
  12 foo (int *x)
  13 {
  14   int i, j;
  15   int sum = 0;
  16
  17   for (j = 0; j < M; ++j)
  18     for (i = 0;  i < N; ++i)
  19       sum += x[M * i + j];
  20
  21   return sum;
  22 }
  23
  24 int
  25 main (void)
  26 {
  27   int A[N*M];
  28   int i, res;
  29
  30   for (i = 0; i < N*M; i++)
  31     A[i] = 2;
  32
  33   res = foo (A);
  34
  35 #if DEBUG
  36   fprintf (stderr, "res = %d \n", res);
  37 #endif
  38
  39   return res != 2468642;
  40 }
  41
  42 /* { dg-final { scan-tree-dump-times "will be interchanged" 1 "graphite" } } */
  43 /* { dg-final { cleanup-tree-dump "graphite" } } */