gcc/testsuite/gcc.dg/vect/vect-3.c

   1 /* { dg-require-effective-target vect_int } */
   2 /* { dg-require-effective-target vect_float } */
   3 /* { dg-add-options bind_pic_locally } */
   4
   5 #include <stdarg.h>
   6 #include "tree-vect.h"
   7
   8 #define N 20
   9
  10 float a[N];
  11 float e[N];
  12 float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
  13 float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
  14 float d[N] = {0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30};
  15 int ic[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
  16 int ib[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
  17 int ia[N];
  18
  19 __attribute__ ((noinline)) int
  20 main1 ()
  21 {
  22   int i;
  23
  24   for (i = 0; i < N; i++)
  25     {
  26       a[i] = b[i] + c[i] + d[i];
  27       e[i] = b[i] + c[i] + d[i];
  28       ia[i] = ib[i] + ic[i];
  29     }
  30
  31   /* check results:  */
  32   for (i = 0; i <N; i++)
  33     {
  34       float fres = b[i] + c[i] + d[i];
  35       int ires = ib[i] + ic[i];
  36       if (a[i] != fres || e[i] != fres || ia[i] != ires)
  37         abort ();
  38     }
  39
  40   return 0;
  41 }
  42
  43 int main (void)
  44 {
  45   check_vect ();
  46
  47   return main1 ();
  48 }
  49
  50 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
  51 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" } } */