/* { dg-do compile } */ #define N 16 void f1 (int *restrict y, int *restrict x1, int *restrict x2, int *restrict indices) { for (int i = 0; i < N; ++i) { /* Different base. */ y[i * 2] = x1[indices[i * 2]] + 1; y[i * 2 + 1] = x2[indices[i * 2 + 1]] + 2; } } void f2 (int *restrict y, int *restrict x, int *restrict indices) { for (int i = 0; i < N; ++i) { /* Different scale. */ y[i * 2] = *(int *)((char *)x + (__UINTPTR_TYPE__)indices[i * 2] * 4) + 1; y[i * 2 + 1] = *(int *)((char *)x + (__UINTPTR_TYPE__)indices[i * 2 + 1] * 2) + 2; } } void f3 (int *restrict y, int *restrict x, int *restrict indices) { for (int i = 0; i < N; ++i) { /* Different type. */ y[i * 2] = x[indices[i * 2]] + 1; y[i * 2 + 1] = x[((unsigned int *) indices)[i * 2 + 1]] + 2; } } /* { dg-final { scan-tree-dump-not "Loop contains only SLP stmts" vect } } */ /* { dg-final { scan-tree-dump "different gather base" vect { target { ! vect_gather_load_ifn } } } } */ /* { dg-final { scan-tree-dump "different gather scale" vect { target { ! vect_gather_load_ifn } } } } */