gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vqshrn_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, 0xf8, 0xf9, 0xf9,
  15                                        0xfa, 0xfa, 0xfb, 0xfb };
  16 VECT_VAR_DECL(expected,int,16,4) [] = { 0xfff8, 0xfff8, 0xfff9, 0xfff9 };
  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 max input value
  24    shifted by 3.  */
  25 int VECT_VAR(expected_cumulative_sat_max_sh3,int,16,8) = 1;
  26 int VECT_VAR(expected_cumulative_sat_max_sh3,int,32,4) = 1;
  27 int VECT_VAR(expected_cumulative_sat_max_sh3,int,64,2) = 1;
  28 int VECT_VAR(expected_cumulative_sat_max_sh3,uint,16,8) = 1;
  29 int VECT_VAR(expected_cumulative_sat_max_sh3,uint,32,4) = 1;
  30 int VECT_VAR(expected_cumulative_sat_max_sh3,uint,64,2) = 1;
  31
  32 /* Expected results with max input value shifted by 3.  */
  33 VECT_VAR_DECL(expected_max_sh3,int,8,8) [] = { 0x7f, 0x7f, 0x7f, 0x7f,
  34                                                0x7f, 0x7f, 0x7f, 0x7f };
  35 VECT_VAR_DECL(expected_max_sh3,int,16,4) [] = { 0x7fff, 0x7fff, 0x7fff, 0x7fff };
  36 VECT_VAR_DECL(expected_max_sh3,int,32,2) [] = { 0x7fffffff, 0x7fffffff };
  37 VECT_VAR_DECL(expected_max_sh3,uint,8,8) [] = { 0xff, 0xff, 0xff, 0xff,
  38                                                 0xff, 0xff, 0xff, 0xff };
  39 VECT_VAR_DECL(expected_max_sh3,uint,16,4) [] = { 0xffff, 0xffff,
  40                                                  0xffff, 0xffff };
  41 VECT_VAR_DECL(expected_max_sh3,uint,32,2) [] = { 0xffffffff, 0xffffffff };
  42
  43 /* Expected values of cumulative_saturation flag with max input value
  44    shifted by type size.  */
  45 int VECT_VAR(expected_cumulative_sat_max_shmax,int,16,8) = 0;
  46 int VECT_VAR(expected_cumulative_sat_max_shmax,int,32,4) = 0;
  47 int VECT_VAR(expected_cumulative_sat_max_shmax,int,64,2) = 0;
  48 int VECT_VAR(expected_cumulative_sat_max_shmax,uint,16,8) = 0;
  49 int VECT_VAR(expected_cumulative_sat_max_shmax,uint,32,4) = 0;
  50 int VECT_VAR(expected_cumulative_sat_max_shmax,uint,64,2) = 0;
  51
  52 /* Expected results with max input value shifted by type size.  */
  53 VECT_VAR_DECL(expected_max_shmax,int,8,8) [] = { 0x7f, 0x7f, 0x7f, 0x7f,
  54                                                  0x7f, 0x7f, 0x7f, 0x7f };
  55 VECT_VAR_DECL(expected_max_shmax,int,16,4) [] = { 0x7fff, 0x7fff,
  56                                                   0x7fff, 0x7fff };
  57 VECT_VAR_DECL(expected_max_shmax,int,32,2) [] = { 0x7fffffff, 0x7fffffff };
  58 VECT_VAR_DECL(expected_max_shmax,uint,8,8) [] = { 0xff, 0xff, 0xff, 0xff,
  59                                                   0xff, 0xff, 0xff, 0xff };
  60 VECT_VAR_DECL(expected_max_shmax,uint,16,4) [] = { 0xffff, 0xffff,
  61                                                    0xffff, 0xffff };
  62 VECT_VAR_DECL(expected_max_shmax,uint,32,2) [] = { 0xffffffff, 0xffffffff };
  63
  64 #define INSN vqshrn_n
  65 #define TEST_MSG "VQSHRN_N"
  66
  67 #define FNNAME1(NAME) void exec_ ## NAME (void)
  68 #define FNNAME(NAME) FNNAME1(NAME)
  69
  70 FNNAME (INSN)
  71 {
  72   /* Basic test: y=vqshrn_n(x,v), then store the result.  */
  73 #define TEST_VQSHRN_N2(INSN, T1, T2, W, W2, N, V, EXPECTED_CUMULATIVE_SAT, CMT) \
  74   Set_Neon_Cumulative_Sat(0, VECT_VAR(vector_res, T1, W2, N));          \
  75   VECT_VAR(vector_res, T1, W2, N) =                                     \
  76     INSN##_##T2##W(VECT_VAR(vector, T1, W, N),                          \
  77                    V);                                                  \
  78   vst1_##T2##W2(VECT_VAR(result, T1, W2, N),                            \
  79                 VECT_VAR(vector_res, T1, W2, N));                       \
  80   CHECK_CUMULATIVE_SAT(TEST_MSG, T1, W, N, EXPECTED_CUMULATIVE_SAT, CMT)
  81
  82   /* Two auxliary macros are necessary to expand INSN */
  83 #define TEST_VQSHRN_N1(INSN, T1, T2, W, W2, N, V, EXPECTED_CUMULATIVE_SAT, CMT) \
  84   TEST_VQSHRN_N2(INSN, T1, T2, W, W2, N, V, EXPECTED_CUMULATIVE_SAT, CMT)
  85
  86 #define TEST_VQSHRN_N(T1, T2, W, W2, N, V, EXPECTED_CUMULATIVE_SAT, CMT) \
  87   TEST_VQSHRN_N1(INSN, T1, T2, W, W2, N, V, EXPECTED_CUMULATIVE_SAT, CMT)
  88
  89
  90   /* vector is twice as large as vector_res.  */
  91   DECL_VARIABLE(vector, int, 16, 8);
  92   DECL_VARIABLE(vector, int, 32, 4);
  93   DECL_VARIABLE(vector, int, 64, 2);
  94   DECL_VARIABLE(vector, uint, 16, 8);
  95   DECL_VARIABLE(vector, uint, 32, 4);
  96   DECL_VARIABLE(vector, uint, 64, 2);
  97
  98   DECL_VARIABLE(vector_res, int, 8, 8);
  99   DECL_VARIABLE(vector_res, int, 16, 4);
 100   DECL_VARIABLE(vector_res, int, 32, 2);
 101   DECL_VARIABLE(vector_res, uint, 8, 8);
 102   DECL_VARIABLE(vector_res, uint, 16, 4);
 103   DECL_VARIABLE(vector_res, uint, 32, 2);
 104
 105   clean_results ();
 106
 107   VLOAD(vector, buffer, q, int, s, 16, 8);
 108   VLOAD(vector, buffer, q, int, s, 32, 4);
 109   VLOAD(vector, buffer, q, int, s, 64, 2);
 110   VLOAD(vector, buffer, q, uint, u, 16, 8);
 111   VLOAD(vector, buffer, q, uint, u, 32, 4);
 112   VLOAD(vector, buffer, q, uint, u, 64, 2);
 113
 114   /* Choose shift amount arbitrarily.  */
 115 #define CMT ""
 116   TEST_VQSHRN_N(int, s, 16, 8, 8, 1, expected_cumulative_sat, CMT);
 117   TEST_VQSHRN_N(int, s, 32, 16, 4, 1, expected_cumulative_sat, CMT);
 118   TEST_VQSHRN_N(int, s, 64, 32, 2, 2, expected_cumulative_sat, CMT);
 119   TEST_VQSHRN_N(uint, u, 16, 8, 8, 2, expected_cumulative_sat, CMT);
 120   TEST_VQSHRN_N(uint, u, 32, 16, 4, 3, expected_cumulative_sat, CMT);
 121   TEST_VQSHRN_N(uint, u, 64, 32, 2, 3, expected_cumulative_sat, CMT);
 122
 123   CHECK(TEST_MSG, int, 8, 8, PRIx8, expected, CMT);
 124   CHECK(TEST_MSG, int, 16, 4, PRIx16, expected, CMT);
 125   CHECK(TEST_MSG, int, 32, 2, PRIx32, expected, CMT);
 126   CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected, CMT);
 127   CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected, CMT);
 128   CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected, CMT);
 129
 130
 131   /* Use max possible value as input.  */
 132   VDUP(vector, q, int, s, 16, 8, 0x7FFF);
 133   VDUP(vector, q, int, s, 32, 4, 0x7FFFFFFF);
 134   VDUP(vector, q, int, s, 64, 2, 0x7FFFFFFFFFFFFFFFLL);
 135   VDUP(vector, q, uint, u, 16, 8, 0xFFFF);
 136   VDUP(vector, q, uint, u, 32, 4, 0xFFFFFFFF);
 137   VDUP(vector, q, uint, u, 64, 2, 0xFFFFFFFFFFFFFFFFULL);
 138
 139 #undef CMT
 140 #define CMT " (check saturation: shift by 3)"
 141   TEST_VQSHRN_N(int, s, 16, 8, 8, 3, expected_cumulative_sat_max_sh3, CMT);
 142   TEST_VQSHRN_N(int, s, 32, 16, 4, 3, expected_cumulative_sat_max_sh3, CMT);
 143   TEST_VQSHRN_N(int, s, 64, 32, 2, 3, expected_cumulative_sat_max_sh3, CMT);
 144   TEST_VQSHRN_N(uint, u, 16, 8, 8, 3, expected_cumulative_sat_max_sh3, CMT);
 145   TEST_VQSHRN_N(uint, u, 32, 16, 4, 3, expected_cumulative_sat_max_sh3, CMT);
 146   TEST_VQSHRN_N(uint, u, 64, 32, 2, 3, expected_cumulative_sat_max_sh3, CMT);
 147
 148   CHECK(TEST_MSG, int, 8, 8, PRIx8, expected_max_sh3, CMT);
 149   CHECK(TEST_MSG, int, 16, 4, PRIx16, expected_max_sh3, CMT);
 150   CHECK(TEST_MSG, int, 32, 2, PRIx32, expected_max_sh3, CMT);
 151   CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected_max_sh3, CMT);
 152   CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected_max_sh3, CMT);
 153   CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected_max_sh3, CMT);
 154
 155
 156 #undef CMT
 157 #define CMT " (check saturation: shift by max)"
 158   TEST_VQSHRN_N(int, s, 16, 8, 8, 8, expected_cumulative_sat_max_shmax, CMT);
 159   TEST_VQSHRN_N(int, s, 32, 16, 4, 16, expected_cumulative_sat_max_shmax, CMT);
 160   TEST_VQSHRN_N(int, s, 64, 32, 2, 32, expected_cumulative_sat_max_shmax, CMT);
 161   TEST_VQSHRN_N(uint, u, 16, 8, 8, 8, expected_cumulative_sat_max_shmax, CMT);
 162   TEST_VQSHRN_N(uint, u, 32, 16, 4, 16, expected_cumulative_sat_max_shmax, CMT);
 163   TEST_VQSHRN_N(uint, u, 64, 32, 2, 32, expected_cumulative_sat_max_shmax, CMT);
 164
 165   CHECK(TEST_MSG, int, 8, 8, PRIx8, expected_max_shmax, CMT);
 166   CHECK(TEST_MSG, int, 16, 4, PRIx16, expected_max_shmax, CMT);
 167   CHECK(TEST_MSG, int, 32, 2, PRIx32, expected_max_shmax, CMT);
 168   CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected_max_shmax, CMT);
 169   CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected_max_shmax, CMT);
 170   CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected_max_shmax, CMT);
 171 }
 172
 173 int main (void)
 174 {
 175   exec_vqshrn_n ();
 176   return 0;
 177 }