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 #pragma GCC novector
  32   for (i = 0; i < N; i++)
  33     {
  34        if (arr[i].a != 6
  35            || arr[i].b != 7
  36            || arr[i].c != 0)
  37          abort();
  38     }
  39 }
  40
  41 int main (void)
  42 {
  43   int i;
  44   s1 arr1[N];
  45
  46   check_vect ();
  47
  48   for (i = 0; i < N; i++)
  49     {
  50       arr1[i].a = i;
  51       arr1[i].b = i * 2;
  52       arr1[i].c = (void *)arr1;
  53       asm volatile ("" ::: "memory");
  54     }
  55
  56
  57   foo1 (arr1);
  58
  59   return 0;
  60 }
  61
  62 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target vect_hw_misalign } } } */
  63 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { target vect_hw_misalign } } } */