| /* { dg-do compile } */ |
| /* { dg-require-effective-target vect_int } */ |
| |
| void |
| f1 (int *x, long step1, int n) |
| { |
| for (int i = 0; i < n; ++i) |
| x[i * step1] += 1; |
| } |
| |
| void |
| f2 (int *x, long step2, int n) |
| { |
| #pragma GCC ivdep |
| for (int i = 0; i < n; ++i) |
| x[i * step2] += 2; |
| } |
| |
| /* { dg-final { scan-tree-dump {need run-time check that [^\n]*step1[^\n]* is nonzero} "vect" } } */ |
| /* { dg-final { scan-tree-dump-not {need run-time check that [^\n]*step2[^\n]* is nonzero} "vect" } } */ |
| /* { dg-final { scan-tree-dump-times {LOOP VECTORIZED} 2 "vect" } } */ |