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

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