Retro68/gcc/libgomp/testsuite/libgomp.c/uns-outer-4.c

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2017-04-10 11:32:00 +00:00
/* { dg-do run } */
/* { dg-additional-options "-ftree-parallelize-loops=2" } */
void abort (void);
unsigned int g_sum = 1;
unsigned int x[500][500];
void __attribute__((noinline,noclone))
parloop (int N)
{
int i, j;
unsigned int sum;
/* Double reduction is detected, outer loop is parallelized. */
sum = 0;
for (i = 0; i < N; i++)
for (j = 0; j < N; j++)
sum += x[i][j];
g_sum = sum;
}
int
main (void)
{
x[234][432] = 2;
parloop (500);
if (g_sum != 2)
abort ();
return 0;
}