gcc/testsuite/gcc.dg/vect/bb-slp-14.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 16
   8
   9 unsigned int out[N];
  10 unsigned int in[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
  11
  12 __attribute__ ((noinline)) int
  13 main1 (unsigned int x, unsigned int y)
  14 {
  15   int i;
  16   unsigned int a0, a1, a2, a3;
  17
  18   /* Not consecutive load with permutation - not supported.  */
  19   a0 = in[0] + 23;
  20   a1 = in[1] + 142;
  21   a2 = in[1] + 2;
  22   a3 = in[3] + 31;
  23
  24   out[0] = a0 * x;
  25   out[1] = a1 * y;
  26   out[2] = a2 * x;
  27   out[3] = a3 * y;
  28
  29   /* Check results.  */
  30   if (out[0] != (in[0] + 23) * x
  31       || out[1] != (in[1] + 142) * y
  32       || out[2] != (in[1] + 2) * x
  33       || out[3] != (in[3] + 31) * y)
  34     abort();
  35
  36   return 0;
  37 }
  38
  39 int main (void)
  40 {
  41   check_vect ();
  42
  43   main1 (2, 3);
  44
  45   return 0;
  46 }
  47
  48 /* { dg-final { scan-tree-dump-times "basic block vectorized using SLP" 0 "slp"  } } */
  49 /* { dg-final { cleanup-tree-dump "slp" } } */
  50