1 /*
2
3 Copyright (c) 2009, 2010, 2011, 2012 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 vqshrn_n
35 #define TEST_MSG "VQSHRN_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=vqshrn_n(x,v), then store the result. */
43 #define TEST_VQSHRN_N2(INSN, T1, T2, W, W2, N, V) \
44 Set_Neon_Cumulative_Sat(0, VECT_VAR(vector_res, T1, W2, N)); \
45 VECT_VAR(vector_res, T1, W2, N) = \
46 INSN##_##T2##W(VECT_VAR(vector, T1, W, N), \
47 V); \
48 vst1_##T2##W2(VECT_VAR(result, T1, W2, N), \
49 VECT_VAR(vector_res, T1, 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_VQSHRN_N1(INSN, T1, T2, W, W2, N, V) \
55 TEST_VQSHRN_N2(INSN, T1, T2, W, W2, N, V)
56
57 #define TEST_VQSHRN_N(T1, T2, W, W2, N, V) \
58 TEST_VQSHRN_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 DECL_VARIABLE(vector, uint, 16, 8);
69 DECL_VARIABLE(vector, uint, 32, 4);
70 DECL_VARIABLE(vector, uint, 64, 2);
71
72 DECL_VARIABLE(vector_res, int, 8, 8);
73 DECL_VARIABLE(vector_res, int, 16, 4);
74 DECL_VARIABLE(vector_res, int, 32, 2);
75 DECL_VARIABLE(vector_res, uint, 8, 8);
76 DECL_VARIABLE(vector_res, uint, 16, 4);
77 DECL_VARIABLE(vector_res, uint, 32, 2);
78
79 clean_results ();
80
81 VLOAD(vector, buffer, q, int, s, 16, 8);
82 VLOAD(vector, buffer, q, int, s, 32, 4);
83 VLOAD(vector, buffer, q, int, s, 64, 2);
84 VLOAD(vector, buffer, q, uint, u, 16, 8);
85 VLOAD(vector, buffer, q, uint, u, 32, 4);
86 VLOAD(vector, buffer, q, uint, u, 64, 2);
87
88 /* Choose shift amount arbitrarily */
89 fprintf(ref_file, "\n%s cumulative saturation output:\n", TEST_MSG);
90 TEST_VQSHRN_N(int, s, 16, 8, 8, 1);
91 TEST_VQSHRN_N(int, s, 32, 16, 4, 1);
92 TEST_VQSHRN_N(int, s, 64, 32, 2, 2);
93 TEST_VQSHRN_N(uint, u, 16, 8, 8, 2);
94 TEST_VQSHRN_N(uint, u, 32, 16, 4, 3);
95 TEST_VQSHRN_N(uint, u, 64, 32, 2, 3);
96
97 /* FIXME: only a few result buffers are used, but we output all of them */
98 dump_results_hex (TEST_MSG);
99
100
101 /* Another set of tests */
102 VDUP(vector, q, int, s, 16, 8, 0x7FFF);
103 VDUP(vector, q, int, s, 32, 4, 0x7FFFFFFF);
104 VDUP(vector, q, int, s, 64, 2, 0x7FFFFFFFFFFFFFFFLL);
105 VDUP(vector, q, uint, u, 16, 8, 0xFFFF);
106 VDUP(vector, q, uint, u, 32, 4, 0xFFFFFFFF);
107 VDUP(vector, q, uint, u, 64, 2, 0xFFFFFFFFFFFFFFFFULL);
108
109 /* shift by 3 to exercise saturation code in the lib */
110 fprintf(ref_file, "\n%s cumulative saturation output:\n",
111 TEST_MSG " (check saturation: shift by 3)");
112 TEST_VQSHRN_N(int, s, 16, 8, 8, 3);
113 TEST_VQSHRN_N(int, s, 32, 16, 4, 3);
114 TEST_VQSHRN_N(int, s, 64, 32, 2, 3);
115 TEST_VQSHRN_N(uint, u, 16, 8, 8, 3);
116 TEST_VQSHRN_N(uint, u, 32, 16, 4, 3);
117 TEST_VQSHRN_N(uint, u, 64, 32, 2, 3);
118
119 /* FIXME: only a few result buffers are used, but we output all of them */
120 dump_results_hex2 (TEST_MSG, " (check saturation: shift by 3)");
121
122
123 /* shift by max to exercise saturation code in the lib */
124 fprintf(ref_file, "\n%s cumulative saturation output:\n",
125 TEST_MSG " (check saturation: shift by max)");
126 TEST_VQSHRN_N(int, s, 16, 8, 8, 8);
127 TEST_VQSHRN_N(int, s, 32, 16, 4, 16);
128 TEST_VQSHRN_N(int, s, 64, 32, 2, 32);
129 TEST_VQSHRN_N(uint, u, 16, 8, 8, 8);
130 TEST_VQSHRN_N(uint, u, 32, 16, 4, 16);
131 TEST_VQSHRN_N(uint, u, 64, 32, 2, 32);
132
133 /* FIXME: only a few result buffers are used, but we output all of them */
134 dump_results_hex2 (TEST_MSG, " (check saturation: shift by max)");
135 }
136