1 /* { dg-require-effective-target vect_int } */
2 /* { dg-require-effective-target arm_v8_2a_dotprod_neon_hw { target { aarch64*-*-* || arm*-*-* } } } */
3 /* { dg-additional-options "-march=armv8.2-a+dotprod" { target { aarch64*-*-* } } } */
4 /* { dg-add-options arm_v8_2a_dotprod_neon } */
13 unsigned char X
[N
] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__
))) = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63};
14 unsigned char Y
[N
] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__
))) = {64,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1};
16 /* char->short->int dot product.
17 Detected as a dot-product pattern.
18 Should be vectorized on targets that support dot-product for unsigned chars
20 and on targets that support widening-multiplication and widening-summation
21 (vect_widen_mult_qi && vec_widen_sum_qi_to_si).
22 Widening-multiplication can also be supported by type promotion and non-widening
23 multiplication (vect_unpack && vect_short_mult);
24 Widening summation can also be supported by type promotion and non-widening
25 summation (vect_unpack).
27 __attribute__ ((noinline
)) unsigned int
30 unsigned int result
= 0;
33 for (i
=0; i
<len
; i
++) {
54 /* { dg-final { scan-tree-dump-times "vect_recog_dot_prod_pattern: detected" 1 "vect" } } */
55 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target vect_udot_qi } } } */
56 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { vect_widen_mult_qi_to_hi && vect_widen_sum_qi_to_si } } } } */