| /* { dg-require-effective-target vect_int } */ |
| |
| #include <stdlib.h> |
| #include <stdarg.h> |
| #include "tree-vect.h" |
| |
| #define N 9 |
| |
| struct extraction |
| { |
| int a[N]; |
| int b[N]; |
| }; |
| |
| static int a[N] = {1,2,3,4,5,6,7,8,9}; |
| static int b[N] = {2,3,4,5,6,7,8,9,9}; |
| volatile int foo; |
| |
| __attribute__ ((noinline)) |
| int main1 (int x, int y) { |
| int i; |
| struct extraction *p; |
| p = (struct extraction *) malloc (sizeof (struct extraction)); |
| |
| for (i = 0; i < N; i++) |
| { |
| p->a[i] = a[i]; |
| if (foo == 135) |
| abort (); /* to avoid vectorization */ |
| } |
| |
| /* Not vectorizable: distance 1. */ |
| for (i = 0; i < N - 1; i++) |
| { |
| p->a[x + i + 1] = p->a[x + i]; |
| } |
| |
| /* check results: */ |
| for (i = 0; i < N; i++) |
| { |
| if (p->a[i] != 1) |
| abort(); |
| } |
| return 0; |
| } |
| |
| int main (void) |
| { |
| check_vect (); |
| |
| foo = 0; |
| return main1 (0, N); |
| } |
| |
| /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" } } */ |
| /* { dg-final { scan-tree-dump-times "possible dependence between data-refs" 1 "vect" } } */ |
| /* { dg-final { cleanup-tree-dump "vect" } } */ |
| |