gcc/testsuite/gcc.dg/vect/slp-4-big-array.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 128
   7
   8 int
   9 main1 ()
  10 {
  11   int i;
  12   unsigned short out[N*8];
  13   unsigned short in[N*8];
  14   unsigned int ia[N*2];
  15
  16   for (i = 0; i < N*8; i++)
  17     {
  18       in[i] = i;
  19       asm volatile ("" ::: "memory");
  20     }
  21
  22   for (i = 0; i < N; i++)
  23     {
  24       out[i*8] = in[i*8];
  25       out[i*8 + 1] = in[i*8 + 1];
  26       out[i*8 + 2] = in[i*8 + 2];
  27       out[i*8 + 3] = in[i*8 + 3];
  28       out[i*8 + 4] = in[i*8 + 4];
  29       out[i*8 + 5] = in[i*8 + 5];
  30       out[i*8 + 6] = in[i*8 + 6];
  31       out[i*8 + 7] = in[i*8 + 7];
  32
  33       ia[i] = 7;
  34     }
  35
  36   /* check results:  */
  37 #pragma GCC novector
  38   for (i = 0; i < N; i++)
  39     {
  40       if (out[i*8] !=  in[i*8]
  41          || out[i*8 + 1] != in[i*8 + 1]
  42          || out[i*8 + 2] != in[i*8 + 2]
  43          || out[i*8 + 3] != in[i*8 + 3]
  44          || out[i*8 + 4] != in[i*8 + 4]
  45          || out[i*8 + 5] != in[i*8 + 5]
  46          || out[i*8 + 6] != in[i*8 + 6]
  47          || out[i*8 + 7] != in[i*8 + 7]
  48          || ia[i] != 7)
  49         abort ();
  50     }
  51
  52   for (i = 0; i < N*2; i++)
  53     {
  54       out[i*4] = in[i*4];
  55       out[i*4 + 1] = in[i*4 + 1];
  56       out[i*4 + 2] = in[i*4 + 2];
  57       out[i*4 + 3] = in[i*4 + 3];
  58
  59       ia[i] = 12;
  60     }
  61
  62   /* check results:  */
  63 #pragma GCC novector
  64   for (i = 0; i < N*2; i++)
  65     {
  66       if (out[i*4] !=  in[i*4]
  67          || out[i*4 + 1] != in[i*4 + 1]
  68          || out[i*4 + 2] != in[i*4 + 2]
  69          || out[i*4 + 3] != in[i*4 + 3]
  70          || ia[i] != 12)
  71         abort ();
  72     }
  73
  74   for (i = 0; i < N/2; i++)
  75     {
  76       out[i*16] = in[i*16];
  77       out[i*16 + 1] = in[i*16 + 1];
  78       out[i*16 + 2] = in[i*16 + 2];
  79       out[i*16 + 3] = in[i*16 + 3];
  80       out[i*16 + 4] = in[i*16 + 4];
  81       out[i*16 + 5] = in[i*16 + 5];
  82       out[i*16 + 6] = in[i*16 + 6];
  83       out[i*16 + 7] = in[i*16 + 7];
  84       out[i*16 + 8] = in[i*16 + 8];
  85       out[i*16 + 9] = in[i*16 + 9];
  86       out[i*16 + 10] = in[i*16 + 10];
  87       out[i*16 + 11] = in[i*16 + 11];
  88       out[i*16 + 12] = in[i*16 + 12];
  89       out[i*16 + 13] = in[i*16 + 13];
  90       out[i*16 + 14] = in[i*16 + 14];
  91       out[i*16 + 15] = in[i*16 + 15];
  92
  93       ia[i] = 21;
  94     }
  95
  96   /* check results:  */
  97 #pragma GCC novector
  98   for (i = 0; i < N/2; i++)
  99     {
 100       if (out[i*16] !=  in[i*16]
 101          || out[i*16 + 1] != in[i*16 + 1]
 102          || out[i*16 + 2] != in[i*16 + 2]
 103          || out[i*16 + 3] != in[i*16 + 3]
 104          || out[i*16 + 4] != in[i*16 + 4]
 105          || out[i*16 + 5] != in[i*16 + 5]
 106          || out[i*16 + 6] != in[i*16 + 6]
 107          || out[i*16 + 7] != in[i*16 + 7]
 108          || out[i*16 + 8] != in[i*16 + 8]
 109          || out[i*16 + 9] != in[i*16 + 9]
 110          || out[i*16 + 10] != in[i*16 + 10]
 111          || out[i*16 + 11] != in[i*16 + 11]
 112          || out[i*16 + 12] != in[i*16 + 12]
 113          || out[i*16 + 13] != in[i*16 + 13]
 114          || out[i*16 + 14] != in[i*16 + 14]
 115          || out[i*16 + 15] != in[i*16 + 15]
 116          || ia[i] != 21)
 117         abort ();
 118     }
 119
 120
 121   return 0;
 122 }
 123
 124 int main (void)
 125 {
 126   check_vect ();
 127
 128   main1 ();
 129
 130   return 0;
 131 }
 132
 133 /* { dg-final { scan-tree-dump-times "vectorized 3 loops" 1 "vect"  } } */
 134 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 6 "vect"  } } */
 135