1 #include <arm_neon.h>
2 #include "arm-neon-ref.h"
3 #include "compute-ref-data.h"
4 
5 /* Expected values of cumulative_saturation flag.  */
6 int VECT_VAR(expected_cumulative_sat,int,16,8) = 0;
7 int VECT_VAR(expected_cumulative_sat,int,32,4) = 0;
8 int VECT_VAR(expected_cumulative_sat,int,64,2) = 0;
9 int VECT_VAR(expected_cumulative_sat,uint,16,8) = 1;
10 int VECT_VAR(expected_cumulative_sat,uint,32,4) = 1;
11 int VECT_VAR(expected_cumulative_sat,uint,64,2) = 1;
12 
13 /* Expected results.  */
14 VECT_VAR_DECL(expected,int,8,8) [] = { 0xf8, 0xf9, 0xf9, 0xfa,
15 				       0xfa, 0xfb, 0xfb, 0xfc };
16 VECT_VAR_DECL(expected,int,16,4) [] = { 0xfff8, 0xfff9, 0xfff9, 0xfffa };
17 VECT_VAR_DECL(expected,int,32,2) [] = { 0xfffffffc, 0xfffffffc };
18 VECT_VAR_DECL(expected,uint,8,8) [] = { 0xff, 0xff, 0xff, 0xff,
19 					0xff, 0xff, 0xff, 0xff };
20 VECT_VAR_DECL(expected,uint,16,4) [] = { 0xffff, 0xffff, 0xffff, 0xffff };
21 VECT_VAR_DECL(expected,uint,32,2) [] = { 0xffffffff, 0xffffffff };
22 
23 /* Expected values of cumulative_saturation flag with shift by 3.  */
24 int VECT_VAR(expected_cumulative_sat_sh3,int,16,8) = 1;
25 int VECT_VAR(expected_cumulative_sat_sh3,int,32,4) = 1;
26 int VECT_VAR(expected_cumulative_sat_sh3,int,64,2) = 1;
27 int VECT_VAR(expected_cumulative_sat_sh3,uint,16,8) = 1;
28 int VECT_VAR(expected_cumulative_sat_sh3,uint,32,4) = 1;
29 int VECT_VAR(expected_cumulative_sat_sh3,uint,64,2) = 1;
30 
31 /* Expected results with shift by 3.  */
32 VECT_VAR_DECL(expected_sh3,int,8,8) [] = { 0x7f, 0x7f, 0x7f, 0x7f,
33 					   0x7f, 0x7f, 0x7f, 0x7f };
34 VECT_VAR_DECL(expected_sh3,int,16,4) [] = { 0x7fff, 0x7fff, 0x7fff, 0x7fff };
35 VECT_VAR_DECL(expected_sh3,int,32,2) [] = { 0x7fffffff, 0x7fffffff };
36 VECT_VAR_DECL(expected_sh3,uint,8,8) [] = { 0xff, 0xff, 0xff, 0xff,
37 					    0xff, 0xff, 0xff, 0xff };
38 VECT_VAR_DECL(expected_sh3,uint,16,4) [] = { 0xffff, 0xffff, 0xffff, 0xffff };
39 VECT_VAR_DECL(expected_sh3,uint,32,2) [] = { 0xffffffff, 0xffffffff };
40 
41 /* Expected values of cumulative_saturation flag with shift by max
42    amount.  */
43 int VECT_VAR(expected_cumulative_sat_shmax,int,16,8) = 1;
44 int VECT_VAR(expected_cumulative_sat_shmax,int,32,4) = 1;
45 int VECT_VAR(expected_cumulative_sat_shmax,int,64,2) = 1;
46 int VECT_VAR(expected_cumulative_sat_shmax,uint,16,8) = 1;
47 int VECT_VAR(expected_cumulative_sat_shmax,uint,32,4) = 1;
48 int VECT_VAR(expected_cumulative_sat_shmax,uint,64,2) = 1;
49 
50 /* Expected results with shift by max amount.  */
51 VECT_VAR_DECL(expected_shmax,int,8,8) [] = { 0x7f, 0x7f, 0x7f, 0x7f,
52 					     0x7f, 0x7f, 0x7f, 0x7f };
53 VECT_VAR_DECL(expected_shmax,int,16,4) [] = { 0x7fff, 0x7fff, 0x7fff, 0x7fff };
54 VECT_VAR_DECL(expected_shmax,int,32,2) [] = { 0x7fffffff, 0x7fffffff };
55 VECT_VAR_DECL(expected_shmax,uint,8,8) [] = { 0xff, 0xff, 0xff, 0xff,
56 					      0xff, 0xff, 0xff, 0xff };
57 VECT_VAR_DECL(expected_shmax,uint,16,4) [] = { 0xffff, 0xffff, 0xffff, 0xffff };
58 VECT_VAR_DECL(expected_shmax,uint,32,2) [] = { 0xffffffff, 0xffffffff };
59 
60 #define INSN vqrshrn_n
61 #define TEST_MSG "VQRSHRN_N"
62 
63 #define FNNAME1(NAME) void exec_ ## NAME (void)
64 #define FNNAME(NAME) FNNAME1(NAME)
65 
FNNAME(INSN)66 FNNAME (INSN)
67 {
68   /* Basic test: y=vqrshrn_n(x,v), then store the result.  */
69 #define TEST_VQRSHRN_N2(INSN, T1, T2, W, W2, N, V, EXPECTED_CUMULATIVE_SAT, CMT) \
70   Set_Neon_Cumulative_Sat(0, VECT_VAR(vector_res, T1, W2, N));		\
71   VECT_VAR(vector_res, T1, W2, N) =					\
72     INSN##_##T2##W(VECT_VAR(vector, T1, W, N),				\
73 		   V);							\
74   vst1_##T2##W2(VECT_VAR(result, T1, W2, N),				\
75 		VECT_VAR(vector_res, T1, W2, N));			\
76   CHECK_CUMULATIVE_SAT(TEST_MSG, T1, W, N, EXPECTED_CUMULATIVE_SAT, CMT)
77 
78   /* Two auxliary macros are necessary to expand INSN */
79 #define TEST_VQRSHRN_N1(INSN, T1, T2, W, W2, N, V, EXPECTED_CUMULATIVE_SAT, CMT) \
80   TEST_VQRSHRN_N2(INSN, T1, T2, W, W2, N, V, EXPECTED_CUMULATIVE_SAT, CMT)
81 
82 #define TEST_VQRSHRN_N(T1, T2, W, W2, N, V, EXPECTED_CUMULATIVE_SAT, CMT) \
83   TEST_VQRSHRN_N1(INSN, T1, T2, W, W2, N, V, EXPECTED_CUMULATIVE_SAT, CMT)
84 
85 
86   /* vector is twice as large as vector_res.  */
87   DECL_VARIABLE(vector, int, 16, 8);
88   DECL_VARIABLE(vector, int, 32, 4);
89   DECL_VARIABLE(vector, int, 64, 2);
90   DECL_VARIABLE(vector, uint, 16, 8);
91   DECL_VARIABLE(vector, uint, 32, 4);
92   DECL_VARIABLE(vector, uint, 64, 2);
93 
94   DECL_VARIABLE(vector_res, int, 8, 8);
95   DECL_VARIABLE(vector_res, int, 16, 4);
96   DECL_VARIABLE(vector_res, int, 32, 2);
97   DECL_VARIABLE(vector_res, uint, 8, 8);
98   DECL_VARIABLE(vector_res, uint, 16, 4);
99   DECL_VARIABLE(vector_res, uint, 32, 2);
100 
101   clean_results ();
102 
103   VLOAD(vector, buffer, q, int, s, 16, 8);
104   VLOAD(vector, buffer, q, int, s, 32, 4);
105   VLOAD(vector, buffer, q, int, s, 64, 2);
106   VLOAD(vector, buffer, q, uint, u, 16, 8);
107   VLOAD(vector, buffer, q, uint, u, 32, 4);
108   VLOAD(vector, buffer, q, uint, u, 64, 2);
109 
110   /* Choose shift amount arbitrarily.  */
111 #define CMT ""
112   TEST_VQRSHRN_N(int, s, 16, 8, 8, 1, expected_cumulative_sat, CMT);
113   TEST_VQRSHRN_N(int, s, 32, 16, 4, 1, expected_cumulative_sat, CMT);
114   TEST_VQRSHRN_N(int, s, 64, 32, 2, 2, expected_cumulative_sat, CMT);
115   TEST_VQRSHRN_N(uint, u, 16, 8, 8, 2, expected_cumulative_sat, CMT);
116   TEST_VQRSHRN_N(uint, u, 32, 16, 4, 3, expected_cumulative_sat, CMT);
117   TEST_VQRSHRN_N(uint, u, 64, 32, 2, 3, expected_cumulative_sat, CMT);
118 
119   CHECK(TEST_MSG, int, 8, 8, PRIx8, expected, CMT);
120   CHECK(TEST_MSG, int, 16, 4, PRIx16, expected, CMT);
121   CHECK(TEST_MSG, int, 32, 2, PRIx32, expected, CMT);
122   CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected, CMT);
123   CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected, CMT);
124   CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected, CMT);
125 
126 
127   /* Another set of tests, shifting max value by 3.  */
128   VDUP(vector, q, int, s, 16, 8, 0x7FFF);
129   VDUP(vector, q, int, s, 32, 4, 0x7FFFFFFF);
130   VDUP(vector, q, int, s, 64, 2, 0x7FFFFFFFFFFFFFFFLL);
131   VDUP(vector, q, uint, u, 16, 8, 0xFFFF);
132   VDUP(vector, q, uint, u, 32, 4, 0xFFFFFFFF);
133   VDUP(vector, q, uint, u, 64, 2, 0xFFFFFFFFFFFFFFFFULL);
134 
135 #undef CMT
136 #define CMT " (check saturation: shift by 3)"
137   TEST_VQRSHRN_N(int, s, 16, 8, 8, 3, expected_cumulative_sat_sh3, CMT);
138   TEST_VQRSHRN_N(int, s, 32, 16, 4, 3, expected_cumulative_sat_sh3, CMT);
139   TEST_VQRSHRN_N(int, s, 64, 32, 2, 3, expected_cumulative_sat_sh3, CMT);
140   TEST_VQRSHRN_N(uint, u, 16, 8, 8, 3, expected_cumulative_sat_sh3, CMT);
141   TEST_VQRSHRN_N(uint, u, 32, 16, 4, 3, expected_cumulative_sat_sh3, CMT);
142   TEST_VQRSHRN_N(uint, u, 64, 32, 2, 3, expected_cumulative_sat_sh3, CMT);
143 
144   CHECK(TEST_MSG, int, 8, 8, PRIx8, expected_sh3, CMT);
145   CHECK(TEST_MSG, int, 16, 4, PRIx16, expected_sh3, CMT);
146   CHECK(TEST_MSG, int, 32, 2, PRIx32, expected_sh3, CMT);
147   CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected_sh3, CMT);
148   CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected_sh3, CMT);
149   CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected_sh3, CMT);
150 
151 
152   /* Shift by max amount.  */
153 #undef CMT
154 #define CMT " (check saturation: shift by max)"
155   TEST_VQRSHRN_N(int, s, 16, 8, 8, 8, expected_cumulative_sat_shmax, CMT);
156   TEST_VQRSHRN_N(int, s, 32, 16, 4, 16, expected_cumulative_sat_shmax, CMT);
157   TEST_VQRSHRN_N(int, s, 64, 32, 2, 32, expected_cumulative_sat_shmax, CMT);
158   TEST_VQRSHRN_N(uint, u, 16, 8, 8, 8, expected_cumulative_sat_shmax, CMT);
159   TEST_VQRSHRN_N(uint, u, 32, 16, 4, 16, expected_cumulative_sat_shmax, CMT);
160   TEST_VQRSHRN_N(uint, u, 64, 32, 2, 32, expected_cumulative_sat_shmax, CMT);
161 
162   CHECK(TEST_MSG, int, 8, 8, PRIx8, expected_shmax, CMT);
163   CHECK(TEST_MSG, int, 16, 4, PRIx16, expected_shmax, CMT);
164   CHECK(TEST_MSG, int, 32, 2, PRIx32, expected_shmax, CMT);
165   CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected_shmax, CMT);
166   CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected_shmax, CMT);
167   CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected_shmax, CMT);
168 }
169 
main(void)170 int main (void)
171 {
172   exec_vqrshrn_n ();
173   return 0;
174 }
175