| /* { dg-do compile } */ |
| |
| #define N 40 |
| signed short image[N][N] __attribute__ ((__aligned__(16))); |
| signed short block[N][N] __attribute__ ((__aligned__(16))); |
| |
| /* Can't do outer-loop vectorization because of non-consecutive access. |
| Currently fails to vectorize because the reduction pattern is not |
| recognized. */ |
| |
| int |
| foo (){ |
| int i,j; |
| int diff = 0; |
| |
| for (i = 0; i < N; i++) { |
| for (j = 0; j < N; j+=8) { |
| diff += (image[i][j] - block[i][j]); |
| } |
| } |
| return diff; |
| } |
| |
| /* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED" 1 "vect" { xfail *-*-* } } } */ |
| /* FORNOW */ |
| /* { dg-final { scan-tree-dump-times "strided access in outer loop" 1 "vect" { xfail *-*-* } } } */ |
| /* { dg-final { scan-tree-dump-times "unexpected pattern" 1 "vect" } } */ |
| /* { dg-final { cleanup-tree-dump "vect" } } */ |
