gcc/testsuite/gcc.dg/vect/vect-4.c

   1 /* { dg-require-effective-target vect_float } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 20
   7
   8 float a[N];
   9 float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57};
  10 float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19};
  11
  12 __attribute__ ((noinline)) int
  13 main1 ()
  14 {
  15   int i;
  16
  17   for (i = 0; i < N; i++)
  18     {
  19       a[i] = b[i] * c[i];
  20     }
  21
  22   /* check results:  */
  23   for (i = 0; i <N; i++)
  24     {
  25       if (a[i] != b[i] * c[i])
  26         abort ();
  27     }
  28
  29   return 0;
  30 }
  31
  32 int main (void)
  33 {
  34   check_vect ();
  35
  36   return main1 ();
  37 }
  38
  39 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
  40 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" } } */
  41 /* { dg-final { cleanup-tree-dump "vect" } } */