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/* { dg-require-effective-target vect_float } */
#include <stdarg.h>
#include "tree-vect.h"
#define N 16
#define DIFF 82
float c[N][N], b[N][N], a[N];
__attribute__ ((noinline)) int
main1 ()
{
int i, j;
float diff;
/* In inner loop vectorization -funsafe-math-optimizations is needed to
vectorize the summation. But in outer loop vectorization the order of
calculation doesn't change, therefore, there is no need in that flag. */
for (i = 0; i < N; i++)
{
diff = 2;
for (j = 0; j < N; j++)
diff += (b[j][i] - c[j][i]);
a[i] = diff;
}
/* Check results: */
for (i = 0; i < N; i++)
if (a[i] != DIFF)
abort ();
return 0;
}
int main (void)
{
int i, j;
check_vect ();
for (i = 0; i < N; i++)
for (j = 0; j < N; j++)
{
b[i][j] = i+j+5;
c[i][j] = i+j;
}
main1 ();
return 0;
}
/* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED" 1 "vect" } } */
/* { dg-final { cleanup-tree-dump "vect" } } */
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