1 #include <arm_neon.h>
2 #include "arm-neon-ref.h"
3 #include "compute-ref-data.h"
4
5 /* Expected results with input=0. */
6 VECT_VAR_DECL(expected_0,int,8,8) [] = { 0x0, 0x0, 0x0, 0x0,
7 0x0, 0x0, 0x0, 0x0 };
8 VECT_VAR_DECL(expected_0,int,16,4) [] = { 0x0, 0x0, 0x0, 0x0 };
9 VECT_VAR_DECL(expected_0,int,32,2) [] = { 0x0, 0x0 };
10 VECT_VAR_DECL(expected_0,uint,8,8) [] = { 0x0, 0x0, 0x0, 0x0,
11 0x0, 0x0, 0x0, 0x0 };
12 VECT_VAR_DECL(expected_0,uint,16,4) [] = { 0x0, 0x0, 0x0, 0x0 };
13 VECT_VAR_DECL(expected_0,uint,32,2) [] = { 0x0, 0x0 };
14
15 /* Expected results. */
16 VECT_VAR_DECL(expected,int,8,8) [] = { 0xf8, 0xf9, 0xf9, 0xfa,
17 0xfa, 0xfb, 0xfb, 0xfc };
18 VECT_VAR_DECL(expected,int,16,4) [] = { 0xfff8, 0xfff9, 0xfff9, 0xfffa };
19 VECT_VAR_DECL(expected,int,32,2) [] = { 0xfffffffc, 0xfffffffc };
20 VECT_VAR_DECL(expected,uint,8,8) [] = { 0xfc, 0xfc, 0xfd, 0xfd,
21 0xfd, 0xfd, 0xfe, 0xfe };
22 VECT_VAR_DECL(expected,uint,16,4) [] = { 0xfffe, 0xfffe, 0xfffe, 0xfffe };
23 VECT_VAR_DECL(expected,uint,32,2) [] = { 0xfffffffe, 0xfffffffe };
24
25 /* Expected results with large shift amount. */
26 VECT_VAR_DECL(expected_sh_large,int,8,8) [] = { 0x0, 0x0, 0x0, 0x0,
27 0x0, 0x0, 0x0, 0x0 };
28 VECT_VAR_DECL(expected_sh_large,int,16,4) [] = { 0x0, 0x0, 0x0, 0x0 };
29 VECT_VAR_DECL(expected_sh_large,int,32,2) [] = { 0x0, 0x0 };
30 VECT_VAR_DECL(expected_sh_large,uint,8,8) [] = { 0x0, 0x0, 0x0, 0x0,
31 0x0, 0x0, 0x0, 0x0 };
32 VECT_VAR_DECL(expected_sh_large,uint,16,4) [] = { 0x0, 0x0, 0x0, 0x0 };
33 VECT_VAR_DECL(expected_sh_large,uint,32,2) [] = { 0x0, 0x0 };
34
35 #define TEST_MSG "VRSHRN_N"
36 void exec_vrshrn_n (void)
37 {
38 /* Basic test: v2=vrshrn_n(v1,v), then store the result. */
39 #define TEST_VRSHRN_N(T1, T2, W, N, W2, V) \
40 VECT_VAR(vector_res, T1, W2, N) = \
41 vrshrn_n_##T2##W(VECT_VAR(vector, T1, W, N), \
42 V); \
43 vst1_##T2##W2(VECT_VAR(result, T1, W2, N), VECT_VAR(vector_res, T1, W2, N))
44
45 /* vector is twice as large as vector_res. */
46 DECL_VARIABLE(vector, int, 16, 8);
47 DECL_VARIABLE(vector, int, 32, 4);
48 DECL_VARIABLE(vector, int, 64, 2);
49 DECL_VARIABLE(vector, uint, 16, 8);
50 DECL_VARIABLE(vector, uint, 32, 4);
51 DECL_VARIABLE(vector, uint, 64, 2);
52
53 DECL_VARIABLE(vector_res, int, 8, 8);
54 DECL_VARIABLE(vector_res, int, 16, 4);
55 DECL_VARIABLE(vector_res, int, 32, 2);
56 DECL_VARIABLE(vector_res, uint, 8, 8);
57 DECL_VARIABLE(vector_res, uint, 16, 4);
58 DECL_VARIABLE(vector_res, uint, 32, 2);
59
60 clean_results ();
61
62 /* Fill input vector with 0, to check behavior on limits. */
63 VDUP(vector, q, int, s, 16, 8, 0);
64 VDUP(vector, q, int, s, 32, 4, 0);
65 VDUP(vector, q, int, s, 64, 2, 0);
66 VDUP(vector, q, uint, u, 16, 8, 0);
67 VDUP(vector, q, uint, u, 32, 4, 0);
68 VDUP(vector, q, uint, u, 64, 2, 0);
69
70 /* Choose shift amount arbitrarily. */
71 TEST_VRSHRN_N(int, s, 16, 8, 8, 1);
72 TEST_VRSHRN_N(int, s, 32, 4, 16, 1);
73 TEST_VRSHRN_N(int, s, 64, 2, 32, 2);
74 TEST_VRSHRN_N(uint, u, 16, 8, 8, 2);
75 TEST_VRSHRN_N(uint, u, 32, 4, 16, 3);
76 TEST_VRSHRN_N(uint, u, 64, 2, 32, 3);
77
78 #define CMT " (with input = 0)"
79 CHECK(TEST_MSG, int, 8, 8, PRIx8, expected_0, CMT);
80 CHECK(TEST_MSG, int, 16, 4, PRIx16, expected_0, CMT);
81 CHECK(TEST_MSG, int, 32, 2, PRIx32, expected_0, CMT);
82 CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected_0, CMT);
83 CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected_0, CMT);
84 CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected_0, CMT);
85
86
87 /* Test again, with predefined input values. */
88 VLOAD(vector, buffer, q, int, s, 16, 8);
89 VLOAD(vector, buffer, q, int, s, 32, 4);
90 VLOAD(vector, buffer, q, int, s, 64, 2);
91 VLOAD(vector, buffer, q, uint, u, 16, 8);
92 VLOAD(vector, buffer, q, uint, u, 32, 4);
93 VLOAD(vector, buffer, q, uint, u, 64, 2);
94
95 /* Choose shift amount arbitrarily. */
96 TEST_VRSHRN_N(int, s, 16, 8, 8, 1);
97 TEST_VRSHRN_N(int, s, 32, 4, 16, 1);
98 TEST_VRSHRN_N(int, s, 64, 2, 32, 2);
99 TEST_VRSHRN_N(uint, u, 16, 8, 8, 2);
100 TEST_VRSHRN_N(uint, u, 32, 4, 16, 3);
101 TEST_VRSHRN_N(uint, u, 64, 2, 32, 3);
102
103 #undef CMT
104 #define CMT ""
105 CHECK(TEST_MSG, int, 8, 8, PRIx8, expected, CMT);
106 CHECK(TEST_MSG, int, 16, 4, PRIx16, expected, CMT);
107 CHECK(TEST_MSG, int, 32, 2, PRIx32, expected, CMT);
108 CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected, CMT);
109 CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected, CMT);
110 CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected, CMT);
111
112
113 /* Fill input arbitrary values. */
114 VDUP(vector, q, int, s, 16, 8, 30);
115 VDUP(vector, q, int, s, 32, 4, 0);
116 VDUP(vector, q, int, s, 64, 2, 0);
117 VDUP(vector, q, uint, u, 16, 8, 0xFFF0);
118 VDUP(vector, q, uint, u, 32, 4, 0xFFFFFFF0);
119 VDUP(vector, q, uint, u, 64, 2, 0);
120
121 /* Choose large shift amount arbitrarily. */
122 TEST_VRSHRN_N(int, s, 16, 8, 8, 7);
123 TEST_VRSHRN_N(int, s, 32, 4, 16, 14);
124 TEST_VRSHRN_N(int, s, 64, 2, 32, 31);
125 TEST_VRSHRN_N(uint, u, 16, 8, 8, 7);
126 TEST_VRSHRN_N(uint, u, 32, 4, 16, 16);
127 TEST_VRSHRN_N(uint, u, 64, 2, 32, 3);
128
129 #undef CMT
130 #define CMT " (with large shift amount)"
131 CHECK(TEST_MSG, int, 8, 8, PRIx8, expected_sh_large, CMT);
132 CHECK(TEST_MSG, int, 16, 4, PRIx16, expected_sh_large, CMT);
133 CHECK(TEST_MSG, int, 32, 2, PRIx32, expected_sh_large, CMT);
134 CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected_sh_large, CMT);
135 CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected_sh_large, CMT);
136 CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected_sh_large, CMT);
137 }
138
139 int main (void)
140 {
141 exec_vrshrn_n ();
142 return 0;
143 }