1 /* Write a reduction loop to be reduced using vector shifts and folded. */
6 #define N (VECTOR_BITS / 8)
11 extern void abort(void);
14 main (unsigned char argc
, char **argv
)
16 unsigned char in
[N
] __attribute__((aligned(16)));
18 unsigned char sum
= 1;
19 unsigned char expected
= 1;
23 for (i
= 0; i
< N
; i
++)
25 in
[i
] = (i
+ i
+ 1) & 0xfd;
26 asm volatile ("" ::: "memory");
29 for (i
= 0; i
< N
; i
++)
32 asm volatile ("" ::: "memory");
35 for (i
= 0; i
< N
; i
++)
40 __builtin_printf("Failed %d\n", sum
);
47 /* { dg-final { scan-tree-dump "Reduce using vector shifts" "vect" { target { whole_vector_shift && { ! vect_logical_reduc } } } } } */
48 /* { dg-final { scan-tree-dump "Reduce using direct vector reduction" "vect" { target vect_logical_reduc } } } */