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) [] = { 0xff, 0xff, 0xff, 0xff,
11 0xff, 0xff, 0xff, 0xff };
12 VECT_VAR_DECL(expected,uint,16,4) [] = { 0xffff, 0xffff, 0xffff, 0xffff };
13 VECT_VAR_DECL(expected,uint,32,2) [] = { 0xffffffff, 0xffffffff };
14
15 /* Expected results with max input value shifted by 3. */
16 VECT_VAR_DECL(expected_max_sh3,int,8,8) [] = { 0x7f, 0x7f, 0x7f, 0x7f,
17 0x7f, 0x7f, 0x7f, 0x7f };
18 VECT_VAR_DECL(expected_max_sh3,int,16,4) [] = { 0x7fff, 0x7fff, 0x7fff, 0x7fff };
19 VECT_VAR_DECL(expected_max_sh3,int,32,2) [] = { 0x7fffffff, 0x7fffffff };
20 VECT_VAR_DECL(expected_max_sh3,uint,8,8) [] = { 0xff, 0xff, 0xff, 0xff,
21 0xff, 0xff, 0xff, 0xff };
22 VECT_VAR_DECL(expected_max_sh3,uint,16,4) [] = { 0xffff, 0xffff,
23 0xffff, 0xffff };
24 VECT_VAR_DECL(expected_max_sh3,uint,32,2) [] = { 0xffffffff, 0xffffffff };
25
26 /* Expected results with max input value shifted by type size. */
27 VECT_VAR_DECL(expected_max_shmax,int,8,8) [] = { 0x7f, 0x7f, 0x7f, 0x7f,
28 0x7f, 0x7f, 0x7f, 0x7f };
29 VECT_VAR_DECL(expected_max_shmax,int,16,4) [] = { 0x7fff, 0x7fff,
30 0x7fff, 0x7fff };
31 VECT_VAR_DECL(expected_max_shmax,int,32,2) [] = { 0x7fffffff, 0x7fffffff };
32 VECT_VAR_DECL(expected_max_shmax,uint,8,8) [] = { 0xff, 0xff, 0xff, 0xff,
33 0xff, 0xff, 0xff, 0xff };
34 VECT_VAR_DECL(expected_max_shmax,uint,16,4) [] = { 0xffff, 0xffff,
35 0xffff, 0xffff };
36 VECT_VAR_DECL(expected_max_shmax,uint,32,2) [] = { 0xffffffff, 0xffffffff };
37
38 #define INSN vqshrn_n
39 #define TEST_MSG "VQSHRN_N"
40
41 #define FNNAME1(NAME) void exec_ ## NAME (void)
42 #define FNNAME(NAME) FNNAME1(NAME)
43
44 FNNAME (INSN)
45 {
46 /* Basic test: y=vqshrn_n(x,v), then store the result. */
47 #define TEST_VQSHRN_N2(INSN, T1, T2, W, W2, N, V, CMT) \
48 Set_Neon_Cumulative_Sat(0, VECT_VAR(vector_res, T1, W2, N)); \
49 VECT_VAR(vector_res, T1, W2, N) = \
50 INSN##_##T2##W(VECT_VAR(vector, T1, W, N), \
51 V); \
52 vst1_##T2##W2(VECT_VAR(result, T1, W2, N), \
53 VECT_VAR(vector_res, T1, W2, N))
54
55 /* Two auxliary macros are necessary to expand INSN */
56 #define TEST_VQSHRN_N1(INSN, T1, T2, W, W2, N, V, CMT) \
57 TEST_VQSHRN_N2(INSN, T1, T2, W, W2, N, V, CMT)
58
59 #define TEST_VQSHRN_N(T1, T2, W, W2, N, V, CMT) \
60 TEST_VQSHRN_N1(INSN, T1, T2, W, W2, N, V, CMT)
61
62
63 /* vector is twice as large as vector_res. */
64 DECL_VARIABLE(vector, int, 16, 8);
65 DECL_VARIABLE(vector, int, 32, 4);
66 DECL_VARIABLE(vector, int, 64, 2);
67 DECL_VARIABLE(vector, uint, 16, 8);
68 DECL_VARIABLE(vector, uint, 32, 4);
69 DECL_VARIABLE(vector, uint, 64, 2);
70
71 DECL_VARIABLE(vector_res, int, 8, 8);
72 DECL_VARIABLE(vector_res, int, 16, 4);
73 DECL_VARIABLE(vector_res, int, 32, 2);
74 DECL_VARIABLE(vector_res, uint, 8, 8);
75 DECL_VARIABLE(vector_res, uint, 16, 4);
76 DECL_VARIABLE(vector_res, uint, 32, 2);
77
78 clean_results ();
79
80 VLOAD(vector, buffer, q, int, s, 16, 8);
81 VLOAD(vector, buffer, q, int, s, 32, 4);
82 VLOAD(vector, buffer, q, int, s, 64, 2);
83 VLOAD(vector, buffer, q, uint, u, 16, 8);
84 VLOAD(vector, buffer, q, uint, u, 32, 4);
85 VLOAD(vector, buffer, q, uint, u, 64, 2);
86
87 /* Choose shift amount arbitrarily. */
88 #define CMT ""
89 TEST_VQSHRN_N(int, s, 16, 8, 8, 1, CMT);
90 TEST_VQSHRN_N(int, s, 32, 16, 4, 1, CMT);
91 TEST_VQSHRN_N(int, s, 64, 32, 2, 2, CMT);
92 TEST_VQSHRN_N(uint, u, 16, 8, 8, 2, CMT);
93 TEST_VQSHRN_N(uint, u, 32, 16, 4, 3, CMT);
94 TEST_VQSHRN_N(uint, u, 64, 32, 2, 3, CMT);
95
96 CHECK(TEST_MSG, int, 8, 8, PRIx8, expected, CMT);
97 CHECK(TEST_MSG, int, 16, 4, PRIx16, expected, CMT);
98 CHECK(TEST_MSG, int, 32, 2, PRIx32, expected, CMT);
99 CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected, CMT);
100 CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected, CMT);
101 CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected, CMT);
102
103
104 /* Use max possible value as input. */
105 VDUP(vector, q, int, s, 16, 8, 0x7FFF);
106 VDUP(vector, q, int, s, 32, 4, 0x7FFFFFFF);
107 VDUP(vector, q, int, s, 64, 2, 0x7FFFFFFFFFFFFFFFLL);
108 VDUP(vector, q, uint, u, 16, 8, 0xFFFF);
109 VDUP(vector, q, uint, u, 32, 4, 0xFFFFFFFF);
110 VDUP(vector, q, uint, u, 64, 2, 0xFFFFFFFFFFFFFFFFULL);
111
112 #undef CMT
113 #define CMT " (check saturation: shift by 3)"
114 TEST_VQSHRN_N(int, s, 16, 8, 8, 3, CMT);
115 TEST_VQSHRN_N(int, s, 32, 16, 4, 3, CMT);
116 TEST_VQSHRN_N(int, s, 64, 32, 2, 3, CMT);
117 TEST_VQSHRN_N(uint, u, 16, 8, 8, 3, CMT);
118 TEST_VQSHRN_N(uint, u, 32, 16, 4, 3, CMT);
119 TEST_VQSHRN_N(uint, u, 64, 32, 2, 3, CMT);
120
121 CHECK(TEST_MSG, int, 8, 8, PRIx8, expected_max_sh3, CMT);
122 CHECK(TEST_MSG, int, 16, 4, PRIx16, expected_max_sh3, CMT);
123 CHECK(TEST_MSG, int, 32, 2, PRIx32, expected_max_sh3, CMT);
124 CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected_max_sh3, CMT);
125 CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected_max_sh3, CMT);
126 CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected_max_sh3, CMT);
127
128
129 #undef CMT
130 #define CMT " (check saturation: shift by max)"
131 TEST_VQSHRN_N(int, s, 16, 8, 8, 8, CMT);
132 TEST_VQSHRN_N(int, s, 32, 16, 4, 16, CMT);
133 TEST_VQSHRN_N(int, s, 64, 32, 2, 32, CMT);
134 TEST_VQSHRN_N(uint, u, 16, 8, 8, 8, CMT);
135 TEST_VQSHRN_N(uint, u, 32, 16, 4, 16, CMT);
136 TEST_VQSHRN_N(uint, u, 64, 32, 2, 32, CMT);
137
138 CHECK(TEST_MSG, int, 8, 8, PRIx8, expected_max_shmax, CMT);
139 CHECK(TEST_MSG, int, 16, 4, PRIx16, expected_max_shmax, CMT);
140 CHECK(TEST_MSG, int, 32, 2, PRIx32, expected_max_shmax, CMT);
141 CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected_max_shmax, CMT);
142 CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected_max_shmax, CMT);
143 CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected_max_shmax, CMT);
144 }
145
146 int main (void)
147 {
148 exec_vqshrn_n ();
149 return 0;
150 }