gcc/testsuite/gcc.dg/vect/bb-slp-38.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include "tree-vect.h"
   4
   5 extern void abort (void);
   6
   7 int a[8], b[8];
   8 int x;
   9
  10 void __attribute__((noinline,noclone))
  11 bar (void)
  12 {
  13   x = 1;
  14 }
  15
  16 void __attribute__((noinline,noclone))
  17 foo(void)
  18 {
  19   a[0] = b[0];
  20   a[1] = b[0];
  21   a[2] = b[3];
  22   a[3] = b[3];
  23   bar ();
  24   a[4] = b[4];
  25   a[5] = b[7];
  26   a[6] = b[4];
  27   a[7] = b[7];
  28 }
  29
  30 int main()
  31 {
  32   int i;
  33   check_vect ();
  34   for (i = 0; i < 8; ++i)
  35     b[i] = i;
  36   foo ();
  37   if (a[0] != 0 || a[1] != 0 || a[2] != 3 || a[3] != 3
  38       || a[4] != 4 || a[5] != 7 || a[6] != 4 || a[7] != 7)
  39     abort ();
  40   return 0;
  41 }
  42
  43 /* { dg-final { scan-tree-dump "basic block vectorized" "slp2" { target vect_perm } } } */
  44 /* { dg-final { scan-tree-dump-times "basic block part vectorized" 2 "slp2" { target vect_perm } } } */