gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vqrshrn_n.c

   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
  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
 170 int main (void)
 171 {
 172   exec_vqrshrn_n ();
 173   return 0;
 174 }