gcc/testsuite/gcc.dg/vect/slp-37.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 128
   7
   8 typedef struct {
   9    int a;
  10    int b;
  11    void *c;
  12 } s1;
  13
  14 int
  15 foo1 (s1 *arr)
  16 {
  17   int i;
  18   s1 *ptr = arr;
  19
  20   /* Vectorized as a strided SLP pair of accesses to <a, b> and a single
  21      strided access to c.  */
  22   for (i = 0; i < N; i++)
  23     {
  24       ptr->a = 6;
  25       ptr->b = 7;
  26       ptr->c = 0;
  27       ptr++;
  28     }
  29
  30   /* check results:  */
  31   for (i = 0; i < N; i++)
  32     {
  33        if (arr[i].a != 6
  34            || arr[i].b != 7
  35            || arr[i].c != 0)
  36          abort();
  37     }
  38 }
  39
  40 int main (void)
  41 {
  42   int i;
  43   s1 arr1[N];
  44
  45   check_vect ();
  46
  47   for (i = 0; i < N; i++)
  48     {
  49       arr1[i].a = i;
  50       arr1[i].b = i * 2;
  51       arr1[i].c = (void *)arr1;
  52       asm volatile ("" ::: "memory");
  53     }
  54
  55
  56   foo1 (arr1);
  57
  58   return 0;
  59 }
  60
  61 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect"  } } */
  62 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect"  } } */