gcc/testsuite/gcc.dg/vect/slp-19b.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   unsigned int i;
  12   unsigned int out[N*8];
  13   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};
  14   unsigned int ia[N*2], a0, a1, a2, a3;
  15
  16   for (i = 0; i < N*2; i++)
  17     {
  18       a0 = in[i*4] + 1;
  19       a1 = in[i*4 + 1] + 2;
  20       a2 = in[i*4 + 2] + 3;
  21       a3 = in[i*4 + 3] + 4;
  22
  23       out[i*4] = a0;
  24       out[i*4 + 1] = a1;
  25       out[i*4 + 2] = a2;
  26       out[i*4 + 3] = a3;
  27
  28       ia[i] = a2;
  29     }
  30
  31   /* check results:  */
  32   for (i = 0; i < N*2; i++)
  33     {
  34       if (out[i*4] !=  in[i*4] + 1
  35          || out[i*4 + 1] != in[i*4 + 1] + 2
  36          || out[i*4 + 2] != in[i*4 + 2] + 3
  37          || out[i*4 + 3] != in[i*4 + 3] + 4
  38          || ia[i] != in[i*4 + 2] + 3)
  39         abort ();
  40     }
  41
  42   return 0;
  43 }
  44
  45 int main (void)
  46 {
  47   check_vect ();
  48
  49   main1 ();
  50
  51   return 0;
  52 }
  53
  54 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target vect_strided4 } } } */
  55 /* { dg-final { scan-tree-dump-times "vectorized 0 loops" 1 "vect" { target { ! vect_strided4 } } } } */
  56 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { target vect_strided4 } } } */
  57 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 0 "vect" { target { ! vect_strided4 } } } } */