| /* { dg-do compile } */ |
| /* { dg-options "-O2 -ftree-parallelize-loops=4 -fdump-tree-parloops2-details -fdump-tree-optimized" } */ |
| |
| void abort (void); |
| |
| unsigned int g_sum=0; |
| unsigned int x[500][500]; |
| |
| void |
| 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; |
| } |
| |
| /* { dg-final { scan-tree-dump-times "parallelizing outer loop" 1 "parloops2" } } */ |
| /* { dg-final { scan-tree-dump-times "loopfn" 4 "optimized" } } */ |
