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

   1 #include <arm_neon.h>
   2 #include "arm-neon-ref.h"
   3 #include "compute-ref-data.h"
   4
   5
   6 /* Expected results with negative input.  */
   7 VECT_VAR_DECL(expected_neg,uint,8,8) [] = { 0x0, 0x0, 0x0, 0x0,
   8                                             0x0, 0x0, 0x0, 0x0 };
   9 VECT_VAR_DECL(expected_neg,uint,16,4) [] = { 0x0, 0x0, 0x0, 0x0 };
  10 VECT_VAR_DECL(expected_neg,uint,32,2) [] = { 0x0, 0x0 };
  11
  12 /* Expected results with max input value shifted by 1.  */
  13 VECT_VAR_DECL(expected_max_sh1,uint,8,8) [] = { 0xff, 0xff, 0xff, 0xff,
  14                                                 0xff, 0xff, 0xff, 0xff };
  15 VECT_VAR_DECL(expected_max_sh1,uint,16,4) [] = { 0xffff, 0xffff,
  16                                                  0xffff, 0xffff };
  17 VECT_VAR_DECL(expected_max_sh1,uint,32,2) [] = { 0xffffffff, 0xffffffff };
  18 VECT_VAR_DECL(expected_max_sh1,uint,64,1) [] = { 0x3333333333333333 };
  19
  20 /* Expected results.  */
  21 VECT_VAR_DECL(expected,uint,8,8) [] = { 0x48, 0x48, 0x48, 0x48,
  22                                         0x48, 0x48, 0x48, 0x48 };
  23 VECT_VAR_DECL(expected,uint,16,4) [] = { 0x0, 0x0, 0x0, 0x0 };
  24 VECT_VAR_DECL(expected,uint,32,2) [] = { 0xdeadbe, 0xdeadbe };
  25
  26
  27 #define INSN vqshrun_n
  28 #define TEST_MSG "VQSHRUN_N"
  29
  30 #define FNNAME1(NAME) void exec_ ## NAME (void)
  31 #define FNNAME(NAME) FNNAME1(NAME)
  32
  33 FNNAME (INSN)
  34 {
  35   /* Basic test: y=vqshrun_n(x,v), then store the result.  */
  36 #define TEST_VQSHRUN_N2(INSN, T1, T2, W, W2, N, V, CMT) \
  37   Set_Neon_Cumulative_Sat(0, VECT_VAR(vector_res, uint, W2, N));        \
  38   VECT_VAR(vector_res, uint, W2, N) =                                   \
  39     INSN##_##T2##W(VECT_VAR(vector, T1, W, N),                          \
  40                    V);                                                  \
  41   vst1_u##W2(VECT_VAR(result, uint, W2, N),                             \
  42              VECT_VAR(vector_res, uint, W2, N));
  43
  44   /* Two auxliary macros are necessary to expand INSN */
  45 #define TEST_VQSHRUN_N1(INSN, T1, T2, W, W2, N, V, CMT) \
  46   TEST_VQSHRUN_N2(INSN, T1, T2, W, W2, N, V, CMT)
  47
  48 #define TEST_VQSHRUN_N(T1, T2, W, W2, N, V, CMT) \
  49   TEST_VQSHRUN_N1(INSN, T1, T2, W, W2, N, V, CMT)
  50
  51
  52   /* vector is twice as large as vector_res.  */
  53   DECL_VARIABLE(vector, int, 16, 8);
  54   DECL_VARIABLE(vector, int, 32, 4);
  55   DECL_VARIABLE(vector, int, 64, 2);
  56
  57   DECL_VARIABLE(vector_res, uint, 8, 8);
  58   DECL_VARIABLE(vector_res, uint, 16, 4);
  59   DECL_VARIABLE(vector_res, uint, 32, 2);
  60
  61   clean_results ();
  62
  63   /* Fill input vector with negative values, to check saturation on
  64      limits.  */
  65   VDUP(vector, q, int, s, 16, 8, -2);
  66   VDUP(vector, q, int, s, 32, 4, -3);
  67   VDUP(vector, q, int, s, 64, 2, -4);
  68
  69   /* Choose shift amount arbitrarily.  */
  70 #define CMT " (negative input)"
  71   TEST_VQSHRUN_N(int, s, 16, 8, 8, 3, CMT);
  72   TEST_VQSHRUN_N(int, s, 32, 16, 4, 4, CMT);
  73   TEST_VQSHRUN_N(int, s, 64, 32, 2, 2, CMT);
  74
  75   CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected_neg, CMT);
  76   CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected_neg, CMT);
  77   CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected_neg, CMT);
  78
  79
  80   /* Fill input vector with max value, to check saturation on
  81      limits.  */
  82   VDUP(vector, q, int, s, 16, 8, 0x7FFF);
  83   VDUP(vector, q, int, s, 32, 4, 0x7FFFFFFF);
  84   VDUP(vector, q, int, s, 64, 2, 0x7FFFFFFFFFFFFFFFLL);
  85
  86 #undef CMT
  87 #define CMT " (check cumulative saturation)"
  88   TEST_VQSHRUN_N(int, s, 16, 8, 8, 1, CMT);
  89   TEST_VQSHRUN_N(int, s, 32, 16, 4, 1, CMT);
  90   TEST_VQSHRUN_N(int, s, 64, 32, 2, 1, CMT);
  91
  92   CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected_max_sh1, CMT);
  93   CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected_max_sh1, CMT);
  94   CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected_max_sh1, CMT);
  95
  96
  97   /* Fill input vector with positive values, to check normal case.  */
  98   VDUP(vector, q, int, s, 16, 8, 0x1234);
  99   VDUP(vector, q, int, s, 32, 4, 0x87654321);
 100   VDUP(vector, q, int, s, 64, 2, 0xDEADBEEF);
 101
 102 #undef CMT
 103 #define CMT ""
 104   TEST_VQSHRUN_N(int, s, 16, 8, 8, 6, CMT);
 105   TEST_VQSHRUN_N(int, s, 32, 16, 4, 7, CMT);
 106   TEST_VQSHRUN_N(int, s, 64, 32, 2, 8, CMT);
 107
 108   CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected, CMT);
 109   CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected, CMT);
 110   CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected, CMT);
 111 }
 112
 113 int main (void)
 114 {
 115   exec_vqshrun_n ();
 116   return 0;
 117 }