gcc/testsuite/gcc.dg/vect/slp-8.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 int ib[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
   9
  10 int main1 ()
  11 {
  12   int i;
  13   float fa[N];
  14
  15   /* int -> float */
  16   for (i = 0; i < N/4; i++)
  17     {
  18       fa[4*i] = (float) ib[4*i];
  19       fa[4*i + 1] = (float) ib[4*i + 1];
  20       fa[4*i + 2] = (float) ib[4*i + 2];
  21       fa[4*i + 3] = (float) ib[4*i + 3];
  22     }
  23
  24   /* check results:  */
  25 #pragma GCC novector
  26   for (i = 0; i < N/4; i++)
  27     {
  28       if (fa[4*i] != (float) ib[4*i]
  29           || fa[4*i + 1] != (float) ib[4*i + 1]
  30           || fa[4*i + 2] != (float) ib[4*i + 2]
  31           || fa[4*i + 3] != (float) ib[4*i + 3])
  32         abort ();
  33     }
  34
  35   return 0;
  36 }
  37
  38 int main (void)
  39 {
  40   check_vect ();
  41
  42   return main1 ();
  43 }
  44
  45 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target powerpc*-*-* i?86-*-* x86_64-*-* } } } */
  46 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { target powerpc*-*-* i?86-*-* x86_64-*-* } } } */