1 #include <arm_neon.h>
2 #include "arm-neon-ref.h"
3 #include "compute-ref-data.h"
4
5
6 /* Expected results with negative input. */
7 VECT_VAR_DECL(expected_neg,uint,8,8) [] = { 0x0, 0x0, 0x0, 0x0,
8 0x0, 0x0, 0x0, 0x0 };
9 VECT_VAR_DECL(expected_neg,uint,16,4) [] = { 0x0, 0x0, 0x0, 0x0 };
10 VECT_VAR_DECL(expected_neg,uint,32,2) [] = { 0x0, 0x0 };
11
12 /* Expected results with max input value shifted by 1. */
13 VECT_VAR_DECL(expected_max_sh1,uint,8,8) [] = { 0xff, 0xff, 0xff, 0xff,
14 0xff, 0xff, 0xff, 0xff };
15 VECT_VAR_DECL(expected_max_sh1,uint,16,4) [] = { 0xffff, 0xffff,
16 0xffff, 0xffff };
17 VECT_VAR_DECL(expected_max_sh1,uint,32,2) [] = { 0xffffffff, 0xffffffff };
18 VECT_VAR_DECL(expected_max_sh1,uint,64,1) [] = { 0x3333333333333333 };
19
20 /* Expected results. */
21 VECT_VAR_DECL(expected,uint,8,8) [] = { 0x48, 0x48, 0x48, 0x48,
22 0x48, 0x48, 0x48, 0x48 };
23 VECT_VAR_DECL(expected,uint,16,4) [] = { 0x0, 0x0, 0x0, 0x0 };
24 VECT_VAR_DECL(expected,uint,32,2) [] = { 0xdeadbe, 0xdeadbe };
25
26
27 #define INSN vqshrun_n
28 #define TEST_MSG "VQSHRUN_N"
29
30 #define FNNAME1(NAME) void exec_ ## NAME (void)
31 #define FNNAME(NAME) FNNAME1(NAME)
32
33 FNNAME (INSN)
34 {
35 /* Basic test: y=vqshrun_n(x,v), then store the result. */
36 #define TEST_VQSHRUN_N2(INSN, T1, T2, W, W2, N, V, CMT) \
37 Set_Neon_Cumulative_Sat(0, VECT_VAR(vector_res, uint, W2, N)); \
38 VECT_VAR(vector_res, uint, W2, N) = \
39 INSN##_##T2##W(VECT_VAR(vector, T1, W, N), \
40 V); \
41 vst1_u##W2(VECT_VAR(result, uint, W2, N), \
42 VECT_VAR(vector_res, uint, W2, N));
43
44 /* Two auxliary macros are necessary to expand INSN */
45 #define TEST_VQSHRUN_N1(INSN, T1, T2, W, W2, N, V, CMT) \
46 TEST_VQSHRUN_N2(INSN, T1, T2, W, W2, N, V, CMT)
47
48 #define TEST_VQSHRUN_N(T1, T2, W, W2, N, V, CMT) \
49 TEST_VQSHRUN_N1(INSN, T1, T2, W, W2, N, V, CMT)
50
51
52 /* vector is twice as large as vector_res. */
53 DECL_VARIABLE(vector, int, 16, 8);
54 DECL_VARIABLE(vector, int, 32, 4);
55 DECL_VARIABLE(vector, int, 64, 2);
56
57 DECL_VARIABLE(vector_res, uint, 8, 8);
58 DECL_VARIABLE(vector_res, uint, 16, 4);
59 DECL_VARIABLE(vector_res, uint, 32, 2);
60
61 clean_results ();
62
63 /* Fill input vector with negative values, to check saturation on
64 limits. */
65 VDUP(vector, q, int, s, 16, 8, -2);
66 VDUP(vector, q, int, s, 32, 4, -3);
67 VDUP(vector, q, int, s, 64, 2, -4);
68
69 /* Choose shift amount arbitrarily. */
70 #define CMT " (negative input)"
71 TEST_VQSHRUN_N(int, s, 16, 8, 8, 3, CMT);
72 TEST_VQSHRUN_N(int, s, 32, 16, 4, 4, CMT);
73 TEST_VQSHRUN_N(int, s, 64, 32, 2, 2, CMT);
74
75 CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected_neg, CMT);
76 CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected_neg, CMT);
77 CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected_neg, CMT);
78
79
80 /* Fill input vector with max value, to check saturation on
81 limits. */
82 VDUP(vector, q, int, s, 16, 8, 0x7FFF);
83 VDUP(vector, q, int, s, 32, 4, 0x7FFFFFFF);
84 VDUP(vector, q, int, s, 64, 2, 0x7FFFFFFFFFFFFFFFLL);
85
86 #undef CMT
87 #define CMT " (check cumulative saturation)"
88 TEST_VQSHRUN_N(int, s, 16, 8, 8, 1, CMT);
89 TEST_VQSHRUN_N(int, s, 32, 16, 4, 1, CMT);
90 TEST_VQSHRUN_N(int, s, 64, 32, 2, 1, CMT);
91
92 CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected_max_sh1, CMT);
93 CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected_max_sh1, CMT);
94 CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected_max_sh1, CMT);
95
96
97 /* Fill input vector with positive values, to check normal case. */
98 VDUP(vector, q, int, s, 16, 8, 0x1234);
99 VDUP(vector, q, int, s, 32, 4, 0x87654321);
100 VDUP(vector, q, int, s, 64, 2, 0xDEADBEEF);
101
102 #undef CMT
103 #define CMT ""
104 TEST_VQSHRUN_N(int, s, 16, 8, 8, 6, CMT);
105 TEST_VQSHRUN_N(int, s, 32, 16, 4, 7, CMT);
106 TEST_VQSHRUN_N(int, s, 64, 32, 2, 8, CMT);
107
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 int main (void)
114 {
115 exec_vqshrun_n ();
116 return 0;
117 }