1 /* { dg-do compile } */
2 /* { dg-options "-O2 -ftree-parallelize-loops=4 -fdump-tree-parloops2-details -fdump-tree-optimized" } */
3 
4 void abort (void);
5 
6 unsigned int x[500][500];
7 unsigned int y[500];
8 unsigned int g_sum=0;
9 
10 void __attribute__((noinline))
init(int i,int j)11 init (int i, int j)
12 {
13   x[i][j]=1;
14 }
15 
16 void __attribute__((noinline))
parloop(int N)17 parloop (int N)
18 {
19   int i, j;
20   unsigned int sum;
21 
22   /* Inner cycle is currently not supported, outer loop is not
23      parallelized.  Inner reduction is detected, inner loop is
24      parallelized.  */
25   for (i = 0; i < N; i++)
26     {
27       sum = 0;
28       for (j = 0; j < N; j++)
29 	sum += x[i][j];
30       y[i]=sum;
31     }
32   g_sum = sum;
33 }
34 
35 int
main(void)36 main (void)
37 {
38   int i, j;
39   for (i = 0; i < 500; i++)
40     for (j = 0; j < 500; j++)
41       init (i, j);
42 
43   parloop (500);
44 
45   return 0;
46 }
47 
48 /* { dg-final { scan-tree-dump-times "parallelizing outer loop" 1 "parloops2" { xfail *-*-* } } } */
49 /* { dg-final { scan-tree-dump-times "loopfn" 4 "optimized" } } */
50