1 /*
2
3 Copyright (c) 2009, 2010, 2011 STMicroelectronics
4 Written by Christophe Lyon
5
6 Permission is hereby granted, free of charge, to any person obtaining a copy
7 of this software and associated documentation files (the "Software"), to deal
8 in the Software without restriction, including without limitation the rights
9 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 copies of the Software, and to permit persons to whom the Software is
11 furnished to do so, subject to the following conditions:
12
13 The above copyright notice and this permission notice shall be included in
14 all copies or substantial portions of the Software.
15
16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 THE SOFTWARE.
23
24 */
25
26 #if defined(__arm__) || defined(__aarch64__)
27 #include <arm_neon.h>
28 #else
29 #include "stm-arm-neon.h"
30 #endif
31
32 #include "stm-arm-neon-ref.h"
33
34 #define INSN vqrshrun_n
35 #define TEST_MSG "VQRSHRUN_N"
36
37 #define FNNAME1(NAME) void exec_ ## NAME (void)
38 #define FNNAME(NAME) FNNAME1(NAME)
39
FNNAME(INSN)40 FNNAME (INSN)
41 {
42 /* Basic test: y=vqrshrun_n(x,v), then store the result. */
43 #define TEST_VQRSHRUN_N2(INSN, T1, T2, W, W2, N, V) \
44 Set_Neon_Cumulative_Sat(0, VECT_VAR(vector_res, uint, W2, N)); \
45 VECT_VAR(vector_res, uint, W2, N) = \
46 INSN##_##T2##W(VECT_VAR(vector, T1, W, N), \
47 V); \
48 vst1_u##W2(VECT_VAR(result, uint, W2, N), \
49 VECT_VAR(vector_res, uint, W2, N)); \
50 dump_neon_cumulative_sat(TEST_MSG, xSTR(INSN##_##T2##W), \
51 xSTR(T1), W, N)
52
53 /* Two auxliary macros are necessary to expand INSN */
54 #define TEST_VQRSHRUN_N1(INSN, T1, T2, W, W2, N, V) \
55 TEST_VQRSHRUN_N2(INSN, T1, T2, W, W2, N, V)
56
57 #define TEST_VQRSHRUN_N(T1, T2, W, W2, N, V) \
58 TEST_VQRSHRUN_N1(INSN, T1, T2, W, W2, N, V)
59
60
61 /* With ARM RVCT, we need to declare variables before any executable
62 statement */
63
64 /* vector is twice as large as vector_res */
65 DECL_VARIABLE(vector, int, 16, 8);
66 DECL_VARIABLE(vector, int, 32, 4);
67 DECL_VARIABLE(vector, int, 64, 2);
68
69 DECL_VARIABLE(vector_res, uint, 8, 8);
70 DECL_VARIABLE(vector_res, uint, 16, 4);
71 DECL_VARIABLE(vector_res, uint, 32, 2);
72
73 clean_results ();
74
75 /* Fill input vector with negative values, to check saturation on 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 fprintf(ref_file, "\n%s cumulative saturation output:\n",
82 TEST_MSG " (negative input)");
83 TEST_VQRSHRUN_N(int, s, 16, 8, 8, 3);
84 TEST_VQRSHRUN_N(int, s, 32, 16, 4, 4);
85 TEST_VQRSHRUN_N(int, s, 64, 32, 2, 2);
86
87 /* FIXME: only a few result buffers are used, but we output all of them */
88 dump_results_hex2 (TEST_MSG, " (negative input)");
89
90 /* Fill input vector with max value, to check saturation on limits */
91 VDUP(vector, q, int, s, 16, 8, 0x7FFF);
92 VDUP(vector, q, int, s, 32, 4, 0x7FFFFFFF);
93 VDUP(vector, q, int, s, 64, 2, 0x7FFFFFFFFFFFFFFFLL);
94
95 /* shift by 1 */
96 fprintf(ref_file, "\n%s cumulative saturation output:\n",
97 TEST_MSG " (check cumulative saturation: shift by 1)");
98 TEST_VQRSHRUN_N(int, s, 16, 8, 8, 1);
99 TEST_VQRSHRUN_N(int, s, 32, 16, 4, 1);
100 TEST_VQRSHRUN_N(int, s, 64, 32, 2, 1);
101
102 dump_results_hex2 (TEST_MSG, " (check cumulative saturation: shift by 1)");
103
104 /* shift by max */
105 fprintf(ref_file, "\n%s cumulative saturation output:\n",
106 TEST_MSG " (check cumulative saturation: shift by max, positive input)");
107 TEST_VQRSHRUN_N(int, s, 16, 8, 8, 8);
108 TEST_VQRSHRUN_N(int, s, 32, 16, 4, 16);
109 TEST_VQRSHRUN_N(int, s, 64, 32, 2, 32);
110
111 dump_results_hex2 (TEST_MSG,
112 " (check cumulative saturation: shift by max, positive input)");
113
114
115 /* Fill input vector with min value, to check saturation on limits */
116 VDUP(vector, q, int, s, 16, 8, 0x8000);
117 VDUP(vector, q, int, s, 32, 4, 0x80000000);
118 VDUP(vector, q, int, s, 64, 2, 0x8000000000000000LL);
119
120 /* shift by max */
121 fprintf(ref_file, "\n%s cumulative saturation output:\n",
122 TEST_MSG " (check cumulative saturation: shift by max, negative input)");
123 TEST_VQRSHRUN_N(int, s, 16, 8, 8, 8);
124 TEST_VQRSHRUN_N(int, s, 32, 16, 4, 16);
125 TEST_VQRSHRUN_N(int, s, 64, 32, 2, 32);
126
127 dump_results_hex2 (TEST_MSG,
128 " (check cumulative saturation: shift by max, negative input)");
129
130 /* Fill input vector with positive values, to check normal case */
131 VDUP(vector, q, int, s, 16, 8, 0x1234);
132 VDUP(vector, q, int, s, 32, 4, 0x87654321);
133 VDUP(vector, q, int, s, 64, 2, 0xDEADBEEF);
134
135 /* shift arbitrary amount */
136 fprintf(ref_file, "\n%s cumulative saturation output:\n", TEST_MSG);
137 TEST_VQRSHRUN_N(int, s, 16, 8, 8, 6);
138 TEST_VQRSHRUN_N(int, s, 32, 16, 4, 7);
139 TEST_VQRSHRUN_N(int, s, 64, 32, 2, 8);
140
141 dump_results_hex (TEST_MSG);
142 }
143