gcc/testsuite/gcc.dg/vect/slp-3.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 12
   7
   8 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};
   9
  10 int
  11 main1 ()
  12 {
  13   int i;
  14   unsigned short out[N*8];
  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
  28   /* check results:  */
  29   for (i = 0; i < N; i++)
  30     {
  31       if (out[i*8] !=  in[i*8]
  32          || out[i*8 + 1] != in[i*8 + 1]
  33          || out[i*8 + 2] != in[i*8 + 2]
  34          || out[i*8 + 3] != in[i*8 + 3]
  35          || out[i*8 + 4] != in[i*8 + 4]
  36          || out[i*8 + 5] != in[i*8 + 5]
  37          || out[i*8 + 6] != in[i*8 + 6]
  38          || out[i*8 + 7] != in[i*8 + 7])
  39         abort ();
  40     }
  41
  42   for (i = 0; i < N*2; i++)
  43     {
  44       out[i*4] = in[i*4];
  45       out[i*4 + 1] = in[i*4 + 1];
  46       out[i*4 + 2] = in[i*4 + 2];
  47       out[i*4 + 3] = in[i*4 + 3];
  48     }
  49
  50   /* check results:  */
  51   for (i = 0; i < N*2; i++)
  52     {
  53       if (out[i*4] !=  in[i*4]
  54          || out[i*4 + 1] != in[i*4 + 1]
  55          || out[i*4 + 2] != in[i*4 + 2]
  56          || out[i*4 + 3] != in[i*4 + 3])
  57         abort ();
  58     }
  59
  60   for (i = 0; i < N/2; i++)
  61     {
  62       out[i*16] = in[i*16];
  63       out[i*16 + 1] = in[i*16 + 1];
  64       out[i*16 + 2] = in[i*16 + 2];
  65       out[i*16 + 3] = in[i*16 + 3];
  66       out[i*16 + 4] = in[i*16 + 4];
  67       out[i*16 + 5] = in[i*16 + 5];
  68       out[i*16 + 6] = in[i*16 + 6];
  69       out[i*16 + 7] = in[i*16 + 7];
  70       out[i*16 + 8] = in[i*16 + 8];
  71       out[i*16 + 9] = in[i*16 + 9];
  72       out[i*16 + 10] = in[i*16 + 10];
  73       out[i*16 + 11] = in[i*16 + 11];
  74       out[i*16 + 12] = in[i*16 + 12];
  75       out[i*16 + 13] = in[i*16 + 13];
  76       out[i*16 + 14] = in[i*16 + 14];
  77       out[i*16 + 15] = in[i*16 + 15];
  78     }
  79
  80   /* check results:  */
  81   for (i = 0; i < N/2; i++)
  82     {
  83       if (out[i*16] !=  in[i*16]
  84          || out[i*16 + 1] != in[i*16 + 1]
  85          || out[i*16 + 2] != in[i*16 + 2]
  86          || out[i*16 + 3] != in[i*16 + 3]
  87          || out[i*16 + 4] != in[i*16 + 4]
  88          || out[i*16 + 5] != in[i*16 + 5]
  89          || out[i*16 + 6] != in[i*16 + 6]
  90          || out[i*16 + 7] != in[i*16 + 7]
  91          || out[i*16 + 8] != in[i*16 + 8]
  92          || out[i*16 + 9] != in[i*16 + 9]
  93          || out[i*16 + 10] != in[i*16 + 10]
  94          || out[i*16 + 11] != in[i*16 + 11]
  95          || out[i*16 + 12] != in[i*16 + 12]
  96          || out[i*16 + 13] != in[i*16 + 13]
  97          || out[i*16 + 14] != in[i*16 + 14]
  98          || out[i*16 + 15] != in[i*16 + 15])
  99         abort ();
 100     }
 101
 102   /* SLP with unrolling by 8.  */
 103   for (i = 0; i < N/4; i++)
 104     {
 105       out[i*9] = in[i*9];
 106       out[i*9 + 1] = in[i*9 + 1];
 107       out[i*9 + 2] = in[i*9 + 2];
 108       out[i*9 + 3] = in[i*9 + 3];
 109       out[i*9 + 4] = in[i*9 + 4];
 110       out[i*9 + 5] = in[i*9 + 5];
 111       out[i*9 + 6] = in[i*9 + 6];
 112       out[i*9 + 7] = in[i*9 + 7];
 113       out[i*9 + 8] = in[i*9 + 8];
 114     }
 115
 116   /* check results:  */
 117   for (i = 0; i < N/4; i++)
 118     {
 119       if (out[i*9] !=  in[i*9]
 120          || out[i*9 + 1] != in[i*9 + 1]
 121          || out[i*9 + 2] != in[i*9 + 2]
 122          || out[i*9 + 3] != in[i*9 + 3]
 123          || out[i*9 + 4] != in[i*9 + 4]
 124          || out[i*9 + 5] != in[i*9 + 5]
 125          || out[i*9 + 6] != in[i*9 + 6]
 126          || out[i*9 + 7] != in[i*9 + 7]
 127          || out[i*9 + 8] != in[i*9 + 8])
 128         abort ();
 129     }
 130
 131
 132   return 0;
 133 }
 134
 135 int main (void)
 136 {
 137   check_vect ();
 138
 139   main1 ();
 140
 141   return 0;
 142 }
 143
 144 /* { dg-final { scan-tree-dump-times "vectorized 3 loops" 1 "vect" { target { ! vect_fully_masked } } } } */
 145 /* { dg-final { scan-tree-dump-times "vectorized 4 loops" 1 "vect" { target vect_fully_masked } } } */
 146 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 3 "vect" { target { ! vect_fully_masked } } } }*/
 147 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 4 "vect" { target vect_fully_masked } } } */
 148