1 #include <arm_neon.h>
2 #include "arm-neon-ref.h"
3 #include "compute-ref-data.h"
4
5 /* Expected results with negative input. */
6 VECT_VAR_DECL(expected_neg,uint,8,8) [] = { 0x0, 0x0, 0x0, 0x0,
7 0x0, 0x0, 0x0, 0x0 };
8 VECT_VAR_DECL(expected_neg,uint,16,4) [] = { 0x0, 0x0, 0x0, 0x0 };
9 VECT_VAR_DECL(expected_neg,uint,32,2) [] = { 0x0, 0x0 };
10
11 /* Expected results with max input value shifted by 1. */
12 VECT_VAR_DECL(expected_max_sh1,uint,8,8) [] = { 0xff, 0xff, 0xff, 0xff,
13 0xff, 0xff, 0xff, 0xff };
14 VECT_VAR_DECL(expected_max_sh1,uint,16,4) [] = { 0xffff, 0xffff,
15 0xffff, 0xffff };
16 VECT_VAR_DECL(expected_max_sh1,uint,32,2) [] = { 0xffffffff, 0xffffffff };
17 VECT_VAR_DECL(expected_max_sh1,uint,64,1) [] = { 0x3333333333333333 };
18
19 /* Expected results with max input value shifted by max amount. */
20 VECT_VAR_DECL(expected_max_shmax,uint,8,8) [] = { 0x80, 0x80, 0x80, 0x80,
21 0x80, 0x80, 0x80, 0x80 };
22 VECT_VAR_DECL(expected_max_shmax,uint,16,4) [] = { 0x8000, 0x8000,
23 0x8000, 0x8000 };
24 VECT_VAR_DECL(expected_max_shmax,uint,32,2) [] = { 0x80000000, 0x80000000 };
25
26 /* Expected results with min input value shifted by max amount. */
27 VECT_VAR_DECL(expected_min_shmax,uint,8,8) [] = { 0x0, 0x0, 0x0, 0x0,
28 0x0, 0x0, 0x0, 0x0 };
29 VECT_VAR_DECL(expected_min_shmax,uint,16,4) [] = { 0x0, 0x0, 0x0, 0x0 };
30 VECT_VAR_DECL(expected_min_shmax,uint,32,2) [] = { 0x0, 0x0 };
31
32 /* Expected results with inputs in usual range. */
33 VECT_VAR_DECL(expected,uint,8,8) [] = { 0x49, 0x49, 0x49, 0x49,
34 0x49, 0x49, 0x49, 0x49 };
35 VECT_VAR_DECL(expected,uint,16,4) [] = { 0x0, 0x0, 0x0, 0x0 };
36 VECT_VAR_DECL(expected,uint,32,2) [] = { 0xdeadbf, 0xdeadbf };
37
38 #define INSN vqrshrun_n
39 #define TEST_MSG "VQRSHRUN_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=vqrshrun_n(x,v), then store the result. */
47 #define TEST_VQRSHRUN_N2(INSN, T1, T2, W, W2, N, V, CMT) \
48 Set_Neon_Cumulative_Sat(0, VECT_VAR(vector_res, uint, W2, N)); \
49 VECT_VAR(vector_res, uint, W2, N) = \
50 INSN##_##T2##W(VECT_VAR(vector, T1, W, N), \
51 V); \
52 vst1_u##W2(VECT_VAR(result, uint, W2, N), \
53 VECT_VAR(vector_res, uint, W2, N))
54
55 /* Two auxliary macros are necessary to expand INSN */
56 #define TEST_VQRSHRUN_N1(INSN, T1, T2, W, W2, N, V, CMT) \
57 TEST_VQRSHRUN_N2(INSN, T1, T2, W, W2, N, V, CMT)
58
59 #define TEST_VQRSHRUN_N(T1, T2, W, W2, N, V, CMT) \
60 TEST_VQRSHRUN_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
68 DECL_VARIABLE(vector_res, uint, 8, 8);
69 DECL_VARIABLE(vector_res, uint, 16, 4);
70 DECL_VARIABLE(vector_res, uint, 32, 2);
71
72 clean_results ();
73
74 /* Fill input vector with negative values, to check saturation on
75 limits. */
76 VDUP(vector, q, int, s, 16, 8, -2);
77 VDUP(vector, q, int, s, 32, 4, -3);
78 VDUP(vector, q, int, s, 64, 2, -4);
79
80 /* Choose shift amount arbitrarily. */
81 #define CMT " (negative input)"
82 TEST_VQRSHRUN_N(int, s, 16, 8, 8, 3, CMT);
83 TEST_VQRSHRUN_N(int, s, 32, 16, 4, 4, CMT);
84 TEST_VQRSHRUN_N(int, s, 64, 32, 2, 2, CMT);
85
86 CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected_neg, CMT);
87 CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected_neg, CMT);
88 CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected_neg, CMT);
89
90
91 /* Fill input vector with max value, to check saturation on
92 limits. */
93 VDUP(vector, q, int, s, 16, 8, 0x7FFF);
94 VDUP(vector, q, int, s, 32, 4, 0x7FFFFFFF);
95 VDUP(vector, q, int, s, 64, 2, 0x7FFFFFFFFFFFFFFFLL);
96
97 /* shift by 1. */
98 #undef CMT
99 #define CMT " (check cumulative saturation: shift by 1)"
100 TEST_VQRSHRUN_N(int, s, 16, 8, 8, 1, CMT);
101 TEST_VQRSHRUN_N(int, s, 32, 16, 4, 1, CMT);
102 TEST_VQRSHRUN_N(int, s, 64, 32, 2, 1, CMT);
103
104 CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected_max_sh1, CMT);
105 CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected_max_sh1, CMT);
106 CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected_max_sh1, CMT);
107
108
109 /* shift by max. */
110 #undef CMT
111 #define CMT " (check cumulative saturation: shift by max, positive input)"
112 TEST_VQRSHRUN_N(int, s, 16, 8, 8, 8, CMT);
113 TEST_VQRSHRUN_N(int, s, 32, 16, 4, 16, CMT);
114 TEST_VQRSHRUN_N(int, s, 64, 32, 2, 32, CMT);
115
116 CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected_max_shmax, CMT);
117 CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected_max_shmax, CMT);
118 CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected_max_shmax, CMT);
119
120
121 /* Fill input vector with min value, to check saturation on limits. */
122 VDUP(vector, q, int, s, 16, 8, 0x8000);
123 VDUP(vector, q, int, s, 32, 4, 0x80000000);
124 VDUP(vector, q, int, s, 64, 2, 0x8000000000000000LL);
125
126 /* shift by max */
127 #undef CMT
128 #define CMT " (check cumulative saturation: shift by max, negative input)"
129 TEST_VQRSHRUN_N(int, s, 16, 8, 8, 8, CMT);
130 TEST_VQRSHRUN_N(int, s, 32, 16, 4, 16, CMT);
131 TEST_VQRSHRUN_N(int, s, 64, 32, 2, 32, CMT);
132
133 CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected_min_shmax, CMT);
134 CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected_min_shmax, CMT);
135 CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected_min_shmax, CMT);
136
137
138 /* Fill input vector with positive values, to check normal case. */
139 VDUP(vector, q, int, s, 16, 8, 0x1234);
140 VDUP(vector, q, int, s, 32, 4, 0x87654321);
141 VDUP(vector, q, int, s, 64, 2, 0xDEADBEEF);
142
143 /* shift arbitrary amount. */
144 #undef CMT
145 #define CMT ""
146 TEST_VQRSHRUN_N(int, s, 16, 8, 8, 6, CMT);
147 TEST_VQRSHRUN_N(int, s, 32, 16, 4, 7, CMT);
148 TEST_VQRSHRUN_N(int, s, 64, 32, 2, 8, CMT);
149
150 CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected, CMT);
151 CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected, CMT);
152 CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected, CMT);
153 }
154
155 int main (void)
156 {
157 exec_vqrshrun_n ();
158 return 0;
159 }