gcc/testsuite/gcc.dg/vect/bb-slp-16.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 32
   7
   8 unsigned int out[N*8];
   9 unsigned int 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, 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};
  10 unsigned int arr[N] = {0,1,2,3,4,5,6,7};
  11
  12 __attribute__ ((noinline)) int
  13 main1 (int dummy)
  14 {
  15   int i;
  16   unsigned int *pin = &in[0];
  17   unsigned int *pout = &out[0];
  18   unsigned int a = 0;
  19
  20   for (i = 0; i < N; i++)
  21     {
  22       *pout++ = *pin++ + a;
  23       *pout++ = *pin++ + a;
  24       *pout++ = *pin++ + a;
  25       *pout++ = *pin++ + a;
  26       *pout++ = *pin++ + a;
  27       *pout++ = *pin++ + a;
  28       *pout++ = *pin++ + a;
  29       *pout++ = *pin++ + a;
  30       if (arr[i] = i)
  31         a = i;
  32       else
  33         a = 2;
  34     }
  35
  36   a = 0;
  37   /* check results: */
  38   for (i = 0; i < N; i++)
  39     {
  40       if (out[i*8] !=  in[i*8] + a
  41          || out[i*8 + 1] != in[i*8 + 1] + a
  42          || out[i*8 + 2] != in[i*8 + 2] + a
  43          || out[i*8 + 3] != in[i*8 + 3] + a
  44          || out[i*8 + 4] != in[i*8 + 4] + a
  45          || out[i*8 + 5] != in[i*8 + 5] + a
  46          || out[i*8 + 6] != in[i*8 + 6] + a
  47          || out[i*8 + 7] != in[i*8 + 7] + a)
  48         abort ();
  49
  50       if (arr[i] = i)
  51         a = i;
  52       else
  53         a = 2;
  54     }
  55
  56   return 0;
  57 }
  58
  59 int main (void)
  60 {
  61   check_vect ();
  62
  63   main1 (33);
  64
  65   return 0;
  66 }
  67
  68 /* { dg-final { scan-tree-dump-times "basic block vectorized" 1 "slp1" } } */
  69