gcc/testsuite/gcc.dg/vect/slp-11b.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 8
   7
   8 int
   9 main1 ()
  10 {
  11   int i;
  12   unsigned int out[N*8], a0, a1, a2, a3, a4, a5, a6, a7, b1, b0, b2, b3, b4, b5, b6, b7;
  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};
  14
  15   /* Requires permutation - not SLPable.  */
  16   for (i = 0; i < N*2; i++)
  17     {
  18       out[i*4] = (in[i*4] + 2) * 3;
  19       out[i*4 + 1] = (in[i*4 + 2] + 2) * 7;
  20       out[i*4 + 2] = (in[i*4 + 1] + 7) * 3;
  21       out[i*4 + 3] = (in[i*4 + 3] + 3) * 4;
  22     }
  23
  24   /* check results:  */
  25   for (i = 0; i < N*2; i++)
  26     {
  27       if (out[i*4] !=  (in[i*4] + 2) * 3
  28          || out[i*4 + 1] != (in[i*4 + 2] + 2) * 7
  29          || out[i*4 + 2] != (in[i*4 + 1] + 7) * 3
  30          || out[i*4 + 3] != (in[i*4 + 3] + 3) * 4)
  31         abort ();
  32     }
  33
  34   return 0;
  35 }
  36
  37 int main (void)
  38 {
  39   check_vect ();
  40
  41   main1 ();
  42
  43   return 0;
  44 }
  45
  46 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { vect_strided4 && vect_int_mult } } } } */
  47 /* { dg-final { scan-tree-dump-times "vectorized 0 loops" 1 "vect" { target { ! { vect_strided4 && vect_int_mult } } } } } */
  48 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 0 "vect" } } */