1 /* { dg-require-effective-target vect_int } */
11 unsigned short X
[N
] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__
)));
12 unsigned short Y
[N
] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__
)));
14 /* short->short->int dot product.
15 Not detected as a dot-product pattern.
16 Requires support for non-widneing multiplication and widening-summation.
17 Vectorized with loop-aware SLP. */
18 __attribute__ ((noinline
)) unsigned int
19 foo1(int len
, int *result1
, int *result2
)
22 unsigned int res1
= 10, res2
= 20;
25 for (i
=0; i
<len
; i
++) {
26 prod
= X
[2*i
] * Y
[2*i
];
28 prod
= X
[2*i
+1] * Y
[2*i
+1];
40 unsigned int dot1
, dot2
;
50 foo1 (N
/2, &dot1
, &dot2
);
52 if (dot1
!= DOT1
|| dot2
!= DOT2
)
58 /* The initialization loop in main also gets vectorized. */
59 /* { dg-final { scan-tree-dump-times "vect_recog_dot_prod_pattern: detected" 1 "vect" { xfail *-*-* } } } */
60 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 2 "vect" { target { vect_short_mult && vect_widen_sum_hi_to_si } } } } */
61 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { xfail { vect_widen_sum_hi_to_si_pattern } } } } */
62 /* { dg-final { cleanup-tree-dump "vect" } } */