1 #include <arm_neon.h>
2 #include "arm-neon-ref.h"
3 #include "compute-ref-data.h"
4
5 /* Expected results. */
6 VECT_VAR_DECL(expected,int,8,8) [] = { 0xf8, 0xf8, 0xf9, 0xf9,
7 0xfa, 0xfa, 0xfb, 0xfb };
8 VECT_VAR_DECL(expected,int,16,4) [] = { 0xfff8, 0xfff8, 0xfff9, 0xfff9 };
9 VECT_VAR_DECL(expected,int,32,2) [] = { 0xfffffffc, 0xfffffffc };
10 VECT_VAR_DECL(expected,uint,8,8) [] = { 0xfc, 0xfc, 0xfc, 0xfc,
11 0xfd, 0xfd, 0xfd, 0xfd };
12 VECT_VAR_DECL(expected,uint,16,4) [] = { 0xfffe, 0xfffe, 0xfffe, 0xfffe };
13 VECT_VAR_DECL(expected,uint,32,2) [] = { 0xfffffffe, 0xfffffffe };
14
15 #define TEST_MSG "VSHRN_N"
exec_vshrn_n(void)16 void exec_vshrn_n (void)
17 {
18 /* Basic test: y=vshrn_n(x,v), then store the result. */
19 #define TEST_VSHRN_N(T1, T2, W, W2, N, V) \
20 VECT_VAR(vector_res, T1, W2, N) = \
21 vshrn_n_##T2##W(VECT_VAR(vector, T1, W, N), \
22 V); \
23 vst1_##T2##W2(VECT_VAR(result, T1, W2, N), VECT_VAR(vector_res, T1, W2, N))
24
25 /* vector is twice as large as vector_res. */
26 DECL_VARIABLE(vector, int, 16, 8);
27 DECL_VARIABLE(vector, int, 32, 4);
28 DECL_VARIABLE(vector, int, 64, 2);
29 DECL_VARIABLE(vector, uint, 16, 8);
30 DECL_VARIABLE(vector, uint, 32, 4);
31 DECL_VARIABLE(vector, uint, 64, 2);
32
33 DECL_VARIABLE(vector_res, int, 8, 8);
34 DECL_VARIABLE(vector_res, int, 16, 4);
35 DECL_VARIABLE(vector_res, int, 32, 2);
36 DECL_VARIABLE(vector_res, uint, 8, 8);
37 DECL_VARIABLE(vector_res, uint, 16, 4);
38 DECL_VARIABLE(vector_res, uint, 32, 2);
39
40 clean_results ();
41
42 VLOAD(vector, buffer, q, int, s, 16, 8);
43 VLOAD(vector, buffer, q, int, s, 32, 4);
44 VLOAD(vector, buffer, q, int, s, 64, 2);
45 VLOAD(vector, buffer, q, uint, u, 16, 8);
46 VLOAD(vector, buffer, q, uint, u, 32, 4);
47 VLOAD(vector, buffer, q, uint, u, 64, 2);
48
49 /* Choose shift amount arbitrarily. */
50 TEST_VSHRN_N(int, s, 16, 8, 8, 1);
51 TEST_VSHRN_N(int, s, 32, 16, 4, 1);
52 TEST_VSHRN_N(int, s, 64, 32, 2, 2);
53 TEST_VSHRN_N(uint, u, 16, 8, 8, 2);
54 TEST_VSHRN_N(uint, u, 32, 16, 4, 3);
55 TEST_VSHRN_N(uint, u, 64, 32, 2, 3);
56
57 #define CMT ""
58 CHECK(TEST_MSG, int, 8, 8, PRIx8, expected, CMT);
59 CHECK(TEST_MSG, int, 16, 4, PRIx16, expected, CMT);
60 CHECK(TEST_MSG, int, 32, 2, PRIx32, expected, CMT);
61 CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected, CMT);
62 CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected, CMT);
63 CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected, CMT);
64 }
65
main(void)66 int main (void)
67 {
68 exec_vshrn_n ();
69 return 0;
70 }
71