view gcc/testsuite/gcc.dg/graphite/interchange-12.c @ 158:494b0b89df80 default tip

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 04ced10e8804
children
line wrap: on
line source

/* { dg-require-effective-target size32plus } */

#define DEBUG 0
#if DEBUG
#include <stdio.h>
#endif

#define N 200

int A[N][N], B[N][N], C[N][N];

static int __attribute__((noinline))
matmult (void)
{
  int i, j, k;

  /* Loops J and K should be interchanged.  */
  for (i = 0; i < N; i++)
    for (j = 0; j < N; j++)
      {
        A[i][j] = 0;
        for (k = 0; k < N; k++)
          A[i][j] += B[i][k] * C[k][j];
      }

  return A[0][0] + A[N-1][N-1];
}

extern void abort ();

int
main (void)
{
  int i, j, res;

  for (i = 0; i < N; i++)
    for (j = 0; j < N; j++)
      {
	A[i][j] = 0;
	B[i][j] = i - j;
	C[i][j] = i + j;
      }

  res = matmult ();

#if DEBUG
  fprintf (stderr, "res = %d \n", res);
#endif

  if (res != 2626800)
    abort ();

  return 0;
}

/* { dg-final { scan-tree-dump "tiled by" "graphite" } } */