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

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