1/*
2
3Copyright (c) 2009, 2010, 2011, 2012 STMicroelectronics
4Written by Christophe Lyon
5
6Permission is hereby granted, free of charge, to any person obtaining a copy
7of this software and associated documentation files (the "Software"), to deal
8in the Software without restriction, including without limitation the rights
9to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10copies of the Software, and to permit persons to whom the Software is
11furnished to do so, subject to the following conditions:
12
13The above copyright notice and this permission notice shall be included in
14all copies or substantial portions of the Software.
15
16THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22THE 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
40FNNAME (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