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 vqshrun_n
35 #define TEST_MSG "VQSHRUN_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=vqshrun_n(x,v), then store the result. */
43 #define TEST_VQSHRUN_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_VQSHRUN_N1(INSN, T1, T2, W, W2, N, V) \
55 TEST_VQSHRUN_N2(INSN, T1, T2, W, W2, N, V)
56
57 #define TEST_VQSHRUN_N(T1, T2, W, W2, N, V) \
58 TEST_VQSHRUN_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_VQSHRUN_N(int, s, 16, 8, 8, 3);
84 TEST_VQSHRUN_N(int, s, 32, 16, 4, 4);
85 TEST_VQSHRUN_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)");
98 TEST_VQSHRUN_N(int, s, 16, 8, 8, 1);
99 TEST_VQSHRUN_N(int, s, 32, 16, 4, 1);
100 TEST_VQSHRUN_N(int, s, 64, 32, 2, 1);
101
102 dump_results_hex2 (TEST_MSG, " (check cumulative saturation)");
103
104 /* Fill input vector with positive values, to check normal case */
105 VDUP(vector, q, int, s, 16, 8, 0x1234);
106 VDUP(vector, q, int, s, 32, 4, 0x87654321);
107 VDUP(vector, q, int, s, 64, 2, 0xDEADBEEF);
108
109 /* shift arbitrary amount */
110 fprintf(ref_file, "\n%s cumulative saturation output:\n", TEST_MSG);
111 TEST_VQSHRUN_N(int, s, 16, 8, 8, 6);
112 TEST_VQSHRUN_N(int, s, 32, 16, 4, 7);
113 TEST_VQSHRUN_N(int, s, 64, 32, 2, 8);
114
115 dump_results_hex (TEST_MSG);
116 }
117