71 lines
1.2 KiB
C
71 lines
1.2 KiB
C
/* { dg-do compile } */
|
|
/* { dg-options "-O2 -ftree-parallelize-loops=4 -fdump-tree-parloops-details -fdump-tree-optimized" } */
|
|
|
|
#include <stdarg.h>
|
|
#include <stdlib.h>
|
|
|
|
#define N 1600
|
|
#define DIFF 2558400
|
|
|
|
int b[N];
|
|
int c[N];
|
|
|
|
/* Reduction of signed-int. */
|
|
|
|
__attribute__ ((noinline))
|
|
void main1 (int x, int max_result, int min_result)
|
|
{
|
|
int i;
|
|
int diff = 0;
|
|
int max = x;
|
|
int min = x;
|
|
|
|
for (i = 0; i < N; i++) {
|
|
diff += (b[i] - c[i]);
|
|
}
|
|
|
|
for (i = 0; i < N; i++) {
|
|
max = max < c[i] ? c[i] : max;
|
|
}
|
|
|
|
for (i = 0; i < N; i++) {
|
|
min = min > c[i] ? c[i] : min;
|
|
}
|
|
|
|
/* check results: */
|
|
if (diff != DIFF)
|
|
abort ();
|
|
if (max != max_result)
|
|
abort ();
|
|
if (min != min_result)
|
|
abort ();
|
|
}
|
|
|
|
__attribute__((noinline))
|
|
void init_arrays ()
|
|
{
|
|
int i;
|
|
|
|
b[0] = 1;
|
|
c[0] = 1;
|
|
for (i=1; i<N; i++)
|
|
{
|
|
b[i] = i * 3;
|
|
c[i] = i;
|
|
}
|
|
}
|
|
|
|
int main (void)
|
|
{
|
|
init_arrays ();
|
|
main1 (2000, 2000, 1);
|
|
main1 (0, 1599, 0);
|
|
return 0;
|
|
}
|
|
|
|
/* { dg-final { scan-tree-dump-times "Detected reduction" 3 "parloops" } } */
|
|
/* { dg-final { scan-tree-dump-times "SUCCESS: may be parallelized" 4 "parloops" } } */
|
|
/* { dg-final { cleanup-tree-dump "parloops" } } */
|
|
/* { dg-final { cleanup-tree-dump "optimized" } } */
|
|
|