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

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include <stdio.h>
   5 #include "tree-vect.h"
   6
   7 #define N 32
   8
   9 unsigned int out[N*8];
  10 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};
  11 unsigned int arr[N] = {0,1,2,3,4,5,6,7};
  12
  13 __attribute__ ((noinline)) int
  14 main1 (int dummy)
  15 {
  16   int i;
  17   unsigned int *pin = &in[0];
  18   unsigned int *pout = &out[0];
  19   unsigned int a = 0;
  20
  21   for (i = 0; i < N; i++)
  22     {
  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       *pout++ = *pin++ + a;
  31       if (arr[i] = i)
  32         a = i;
  33       else
  34         a = 2;
  35     }
  36
  37   a = 0;
  38   /* check results: */
  39   for (i = 0; i < N; i++)
  40     {
  41       if (out[i*8] !=  in[i*8] + a
  42          || out[i*8 + 1] != in[i*8 + 1] + a
  43          || out[i*8 + 2] != in[i*8 + 2] + a
  44          || out[i*8 + 3] != in[i*8 + 3] + a
  45          || out[i*8 + 4] != in[i*8 + 4] + a
  46          || out[i*8 + 5] != in[i*8 + 5] + a
  47          || out[i*8 + 6] != in[i*8 + 6] + a
  48          || out[i*8 + 7] != in[i*8 + 7] + a)
  49         abort ();
  50
  51       if (arr[i] = i)
  52         a = i;
  53       else
  54         a = 2;
  55     }
  56
  57   return 0;
  58 }
  59
  60 int main (void)
  61 {
  62   check_vect ();
  63
  64   main1 (33);
  65
  66   return 0;
  67 }
  68
  69 /* { dg-final { scan-tree-dump-times "basic block vectorized using SLP" 1 "slp" } } */
  70 /* { dg-final { cleanup-tree-dump "slp" } } */
  71