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/* { dg-require-effective-target size32plus } */
#define DEBUG 0
#if DEBUG
#include <stdio.h>
#endif
#define N 24
#define M 1000
int A[M][M], B[M][M], C[M][M];
static int __attribute__((noinline))
foo (void)
{
int i, j, k;
/* This should NOT be blocked: each loop iterates only 24 times. */
for (i = 0; i < 24; i++)
for (j = 0; j < 24; j++)
for (k = 0; k < 24; k++)
A[i][j] = B[i][k] * C[k][j];
/* This should be blocked. */
for (i = 0; i < M; i++)
for (j = 0; j < M; j++)
for (k = 0; k < M; k++)
A[i][j] = B[i][k] * C[k][j];
return A[0][0] + A[M-1][M-1];
}
extern void abort ();
int
main (void)
{
int i, j, res;
for (i = 0; i < M; i++)
for (j = 0; j < M; j++)
{
B[i][j] = i;
C[i][j] = j;
}
res = foo ();
#if DEBUG
fprintf (stderr, "res = %d \n", res);
#endif
if (res != 998001)
abort ();
return 0;
}
/* { dg-final { scan-tree-dump-times "will be loop blocked" 1 "graphite" { xfail *-*-* } } } */
/* { dg-final { cleanup-tree-dump "graphite" } } */
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