| /* { dg-do compile } */ |
| /* { dg-options "-O2 -ftree-loop-linear -fdump-tree-ltrans-all" } */ |
| |
| double u[1782225]; |
| int foo(int N, int *res) |
| { |
| int i, j; |
| double sum = 0.0; |
| /* This loop should be converted to a perfect nest and |
| interchanged. */ |
| for (i = 0; i < N; i++) |
| { |
| for (j = 0; j < N; j++) |
| sum = sum + u[i + 1335 * j]; |
| |
| u[1336 * i] *= 2; |
| } |
| *res = sum + N; |
| } |
| /* { dg-final { scan-tree-dump-times "converted loop nest to perfect |
| loop nest" 1 "ltrans"} } */ |
| /* { dg-final { scan-tree-dump-times "transformed loop" 1 "ltrans"} } */ |
