gcc/testsuite/gcc.dg/vect/pr60656.c

   1 /* { dg-require-effective-target vect_int } */
   2 /* { dg-require-effective-target vect_long } */
   3
   4 #include "tree-vect.h"
   5
   6 __attribute__ ((noinline)) long
   7 foo ()
   8 {
   9   int v[] = {5000, 5001, 5002, 5003};
  10   long s = 0;
  11   int i;
  12
  13   for(i = 0; i < 4; ++i)
  14     {
  15       long P = v[i];
  16       s += P * P * P;
  17     }
  18   return s;
  19 }
  20
  21 long
  22 bar ()
  23 {
  24   int v[] = {5000, 5001, 5002, 5003};
  25   long s = 0;
  26   int i;
  27
  28   for(i = 0; i < 4; ++i)
  29     {
  30       long P = v[i];
  31       s += P * P * P;
  32       __asm__ volatile ("");
  33     }
  34   return s;
  35 }
  36
  37 int main()
  38 {
  39   check_vect ();
  40
  41   if (foo () != bar ())
  42     abort ();
  43   return 0;
  44 }
  45
  46 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target vect_widen_mult_si_to_di_pattern } } } */