/* { dg-require-effective-target vect_int } */ #include #include #include "tree-vect.h" #define N 9 static int a[N] = {1,2,3,4,5,6,7,8,9}; static int b[N] = {2,3,4,5,6,7,8,9,0}; __attribute__ ((noinline)) int main1 () { int i; int *p, *q, *p1, *q1; p = (unsigned int *) malloc (sizeof (unsigned int) * N); q = (unsigned int *) malloc (sizeof (unsigned int) * N); p1 = p; q1 = q; /* Vectorizable, before pointer plus we would get a redundant cast (caused by pointer arithmetics), alias analysis fails to distinguish between the pointers. */ for (i = 0; i < N; i++) { *(q + i) = a[i]; *(p + i) = b[i]; } /* check results: */ for (i = 0; i < N; i++) { if (*q != a[i] || *p != b[i]) abort(); q++; p++; } q = q1; p = p1; /* Vectorizable. */ for (i = 0; i < N; i++) { *q = b[i]; *p = a[i]; q++; p++; } q = q1; p = p1; /* check results: */ for (i = 0; i < N; i++) { if (*q != b[i] || *p != a[i]) abort(); q++; p++; } return 0; } int main (void) { check_vect (); return main1 (); } /* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect" } } */ /* { dg-final { cleanup-tree-dump "vect" } } */