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 && vect_unpack } } } } } */
61 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { xfail { vect_widen_sum_hi_to_si_pattern || { ! vect_unpack } } } } } */
62 /* { dg-final { cleanup-tree-dump "vect" } } */