1  #include <arm_neon.h>
       2  #include "arm-neon-ref.h"
       3  #include "compute-ref-data.h"
       4  
       5  /* Expected results.  */
       6  VECT_VAR_DECL(expected,int,8,8) [] = { 0xf0, 0xf1, 0xf2, 0xf3,
       7  				       0xf4, 0xf5, 0xf6, 0xf7 };
       8  VECT_VAR_DECL(expected,int,16,4) [] = { 0xfff0, 0xfff1, 0xfff2, 0xfff3 };
       9  VECT_VAR_DECL(expected,int,32,2) [] = { 0xfffffff0, 0xfffffff1 };
      10  VECT_VAR_DECL(expected,int,64,1) [] = { 0xfffffffffffffff0 };
      11  VECT_VAR_DECL(expected,uint,8,8) [] = { 0xf0, 0xf1, 0xf2, 0xf3,
      12  					0xf4, 0xf5, 0xf6, 0xf7 };
      13  VECT_VAR_DECL(expected,uint,16,4) [] = { 0xfff0, 0xfff1, 0xfff2, 0xfff3 };
      14  VECT_VAR_DECL(expected,uint,32,2) [] = { 0xfffffff0, 0xfffffff1 };
      15  VECT_VAR_DECL(expected,uint,64,1) [] = { 0xfffffffffffffff0 };
      16  VECT_VAR_DECL(expected,poly,8,8) [] = { 0xf0, 0xf1, 0xf2, 0xf3,
      17  					0xf4, 0xf5, 0xf6, 0xf7 };
      18  VECT_VAR_DECL(expected,poly,16,4) [] = { 0xfff0, 0xfff1, 0xfff2, 0xfff3 };
      19  VECT_VAR_DECL(expected,hfloat,16,4) [] = { 0xcc00, 0xcb80, 0xcb00, 0xca80 };
      20  VECT_VAR_DECL(expected,hfloat,32,2) [] = { 0xc1800000, 0xc1700000 };
      21  
      22  #define TEST_MSG "VGET_LOW"
      23  void exec_vget_low (void)
      24  {
      25    /* Basic test: vec64=vget_low(vec128), then store the result.  */
      26  #define TEST_VGET_LOW(T1, T2, W, N, N2)					\
      27    VECT_VAR(vector64, T1, W, N) =					\
      28      vget_low_##T2##W(VECT_VAR(vector128, T1, W, N2));			\
      29    vst1_##T2##W(VECT_VAR(result, T1, W, N), VECT_VAR(vector64, T1, W, N))
      30  
      31    DECL_VARIABLE_64BITS_VARIANTS(vector64);
      32    DECL_VARIABLE_128BITS_VARIANTS(vector128);
      33  
      34    TEST_MACRO_128BITS_VARIANTS_2_5(VLOAD, vector128, buffer);
      35  #if defined (__ARM_FP16_FORMAT_IEEE) || defined (__ARM_FP16_FORMAT_ALTERNATIVE)
      36    VLOAD(vector128, buffer, q, float, f, 16, 8);
      37  #endif
      38    VLOAD(vector128, buffer, q, float, f, 32, 4);
      39  
      40    clean_results ();
      41  
      42    /* Execute the tests.  */
      43    TEST_VGET_LOW(int, s, 8, 8, 16);
      44    TEST_VGET_LOW(int, s, 16, 4, 8);
      45    TEST_VGET_LOW(int, s, 32, 2, 4);
      46    TEST_VGET_LOW(int, s, 64, 1, 2);
      47    TEST_VGET_LOW(uint, u, 8, 8, 16);
      48    TEST_VGET_LOW(uint, u, 16, 4, 8);
      49    TEST_VGET_LOW(uint, u, 32, 2, 4);
      50    TEST_VGET_LOW(uint, u, 64, 1, 2);
      51    TEST_VGET_LOW(poly, p, 8, 8, 16);
      52    TEST_VGET_LOW(poly, p, 16, 4, 8);
      53  #if defined (__ARM_FP16_FORMAT_IEEE) || defined (__ARM_FP16_FORMAT_ALTERNATIVE)
      54    TEST_VGET_LOW(float, f, 16, 4, 8);
      55  #endif
      56    TEST_VGET_LOW(float, f, 32, 2, 4);
      57  
      58    CHECK(TEST_MSG, int, 8, 8, PRIx8, expected, "");
      59    CHECK(TEST_MSG, int, 16, 4, PRIx16, expected, "");
      60    CHECK(TEST_MSG, int, 32, 2, PRIx32, expected, "");
      61    CHECK(TEST_MSG, int, 64, 1, PRIx64, expected, "");
      62    CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected, "");
      63    CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected, "");
      64    CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected, "");
      65    CHECK(TEST_MSG, uint, 64, 1, PRIx64, expected, "");
      66    CHECK_POLY(TEST_MSG, poly, 8, 8, PRIx8, expected, "");
      67    CHECK_POLY(TEST_MSG, poly, 16, 4, PRIx16, expected, "");
      68  #if defined (__ARM_FP16_FORMAT_IEEE) || defined (__ARM_FP16_FORMAT_ALTERNATIVE)
      69    CHECK_FP(TEST_MSG, float, 16, 4, PRIx16, expected, "");
      70  #endif
      71    CHECK_FP(TEST_MSG, float, 32, 2, PRIx32, expected, "");
      72  }
      73  
      74  int main (void)
      75  {
      76    exec_vget_low ();
      77    return 0;
      78  }