gcc/testsuite/gcc.dg/vect/vect-shift-2.c

   1 /* { dg-require-effective-target vect_shift } */
   2 /* { dg-require-effective-target vect_int } */
   3 /* Check the standard integer types for left and right shifts to see if the
   4    compiler replaced a scalar instruction with a vector instruction whether the
   5    correct value is generated.  */
   6
   7 #ifdef TRACE
   8 #include <stdio.h>
   9 #endif
  10
  11 #include <stdarg.h>
  12 #include "tree-vect.h"
  13
  14 #ifndef ALIGN
  15 #define ALIGN __attribute__((__aligned__(__BIGGEST_ALIGNMENT__)))
  16 #endif
  17
  18 #ifndef NOINLINE
  19 #define NOINLINE __attribute__((__noinline__))
  20 #endif
  21
  22 #ifdef TRACE
  23 #define TRACE_FUNC(PREFIX, NAME) printf (#PREFIX #NAME "\n")
  24 #define TRACE_DONE()  printf ("done!\n")
  25 #define TRACE_ABORT(I,E,G)                                              \
  26 do {                                                                    \
  27   printf ("Element %d, expected 0x%lx, got 0x%lx\n",                    \
  28           I, (long)(E), (long)(G));                                     \
  29   abort ();                                                             \
  30 } while (0)
  31
  32 #else
  33 #define TRACE_FUNC(PREFIX, A)
  34 #define TRACE_DONE()
  35 #define TRACE_ABORT(I,E,G) abort ()
  36 #endif
  37
  38 #define NAME(A,B) A ## B
  39
  40 #define VECT_TESTS(PREFIX, TYPE, N)                                     \
  41  /* Restrict the optimizer from optimizing the setup loops.  */         \
  42 volatile TYPE NAME (PREFIX, zero) = 0;                                  \
  43                                                                         \
  44 TYPE NAME (PREFIX, a)[N] ALIGN;                                         \
  45 TYPE NAME (PREFIX, b)[N] ALIGN;                                         \
  46 TYPE NAME (PREFIX, c)[N] ALIGN;                                         \
  47 TYPE NAME (PREFIX, d)[N] ALIGN;                                         \
  48                                                                         \
  49 static void NOINLINE                                                    \
  50 NAME (PREFIX, lshift_2) (void)                                          \
  51 {                                                                       \
  52   int i;                                                                \
  53                                                                         \
  54   TRACE_FUNC (PREFIX, lshift_2);                                        \
  55   for (i = 0; i < N; i++)                                               \
  56     NAME (PREFIX, a)[i] = NAME (PREFIX, b)[i] << 2;                     \
  57 }                                                                       \
  58                                                                         \
  59 static void NOINLINE                                                    \
  60 NAME (PREFIX, lshift_var) (int shift)                                   \
  61 {                                                                       \
  62   int i;                                                                \
  63                                                                         \
  64   TRACE_FUNC (PREFIX, lshift_var);                                      \
  65   for (i = 0; i < N; i++)                                               \
  66     NAME (PREFIX, a)[i] = NAME (PREFIX, b)[i] << shift;                 \
  67 }                                                                       \
  68                                                                         \
  69 static void NOINLINE                                                    \
  70 NAME (PREFIX, lshift_vect) (void)                                       \
  71 {                                                                       \
  72   int i;                                                                \
  73                                                                         \
  74   TRACE_FUNC (PREFIX, lshift_vect);                                     \
  75   for (i = 0; i < N; i++)                                               \
  76     NAME (PREFIX, a)[i] = NAME (PREFIX, b)[i] << NAME (PREFIX, c)[i];   \
  77 }                                                                       \
  78                                                                         \
  79 static void NOINLINE                                                    \
  80 NAME (PREFIX, rshift_2) (void)                                          \
  81 {                                                                       \
  82   int i;                                                                \
  83                                                                         \
  84   TRACE_FUNC (PREFIX, rshift_2);                                        \
  85   for (i = 0; i < N; i++)                                               \
  86     NAME (PREFIX, a)[i] = NAME (PREFIX, b)[i] >> 2;                     \
  87 }                                                                       \
  88                                                                         \
  89 static void NOINLINE                                                    \
  90 NAME (PREFIX, rshift_var) (int shift)                                   \
  91 {                                                                       \
  92   int i;                                                                \
  93                                                                         \
  94   TRACE_FUNC (PREFIX, rshift_var);                                      \
  95   for (i = 0; i < N; i++)                                               \
  96     NAME (PREFIX, a)[i] = NAME (PREFIX, b)[i] >> shift;                 \
  97 }                                                                       \
  98                                                                         \
  99 static void NOINLINE                                                    \
 100 NAME (PREFIX, rshift_vect) (void)                                       \
 101 {                                                                       \
 102   int i;                                                                \
 103                                                                         \
 104   TRACE_FUNC (PREFIX, rshift_vect);                                     \
 105   for (i = 0; i < N; i++)                                               \
 106     NAME (PREFIX, a)[i] = NAME (PREFIX, b)[i] >> NAME (PREFIX, c)[i];   \
 107 }                                                                       \
 108                                                                         \
 109 static void NOINLINE                                                    \
 110 NAME (PREFIX, check) (void)                                             \
 111 {                                                                       \
 112   int i;                                                                \
 113                                                                         \
 114   TRACE_FUNC (PREFIX, check);                                           \
 115   for (i = 0; i < N; i++)                                               \
 116     if (NAME (PREFIX, a)[i] != NAME (PREFIX, d)[i])                     \
 117       TRACE_ABORT (i, NAME (PREFIX, d)[i], NAME (PREFIX, a)[i]);        \
 118 }                                                                       \
 119                                                                         \
 120 static void NOINLINE                                                    \
 121 NAME (PREFIX, tests) (void)                                             \
 122 {                                                                       \
 123   int i;                                                                \
 124                                                                         \
 125   TRACE_FUNC (PREFIX, tests);                                           \
 126   for (i = 0; i < N; i++)                                               \
 127     {                                                                   \
 128       NAME (PREFIX, b)[i] = (i + NAME (PREFIX, zero));                  \
 129       NAME (PREFIX, c)[i] = 2;                                          \
 130       NAME (PREFIX, d)[i] = (i + NAME (PREFIX, zero)) << 2;             \
 131     }                                                                   \
 132                                                                         \
 133   NAME (PREFIX, lshift_2) ();                                           \
 134   NAME (PREFIX, check) ();                                              \
 135                                                                         \
 136   NAME (PREFIX, lshift_var) (2);                                        \
 137   NAME (PREFIX, check) ();                                              \
 138                                                                         \
 139   NAME (PREFIX, lshift_vect) ();                                        \
 140   NAME (PREFIX, check) ();                                              \
 141                                                                         \
 142   for (i = 0; i < N; i++)                                               \
 143     {                                                                   \
 144       NAME (PREFIX, b)[i] = ((i + NAME (PREFIX, zero)) << 4)            \
 145         | (((TYPE)0x80) << ((sizeof (TYPE) * 8) - 8));                  \
 146       NAME (PREFIX, c)[i] = 2;                                          \
 147       NAME (PREFIX, d)[i] = (TYPE)((NAME (PREFIX, b)[i]                 \
 148                                     + NAME (PREFIX, zero)) >> 2);       \
 149     }                                                                   \
 150                                                                         \
 151   NAME (PREFIX, rshift_2) ();                                           \
 152   NAME (PREFIX, check) ();                                              \
 153                                                                         \
 154   NAME (PREFIX, rshift_var) (2);                                        \
 155   NAME (PREFIX, check) ();                                              \
 156                                                                         \
 157   NAME (PREFIX, rshift_vect) ();                                        \
 158   NAME (PREFIX, check) ();                                              \
 159 }
 160
 161 VECT_TESTS(uc_, unsigned char,  16)
 162 VECT_TESTS(us_, unsigned short, 32)
 163 VECT_TESTS(ui_, unsigned int,   32)
 164 VECT_TESTS(ul_, unsigned long,  32)
 165
 166 VECT_TESTS(sc_, signed char,    16)
 167 VECT_TESTS(ss_, short,          32)
 168 VECT_TESTS(si_, int,            32)
 169 VECT_TESTS(sl_, long,           32)
 170
 171 int main ()
 172 {
 173   int i;
 174
 175   check_vect ();
 176
 177   uc_tests ();
 178   us_tests ();
 179   ui_tests ();
 180   ul_tests ();
 181
 182   sc_tests ();
 183   ss_tests ();
 184   si_tests ();
 185   sl_tests ();
 186
 187   TRACE_DONE ();
 188   return 0;
 189 }
 190
 191 /* { dg-final { cleanup-tree-dump "vect" } } */