gcc/testsuite/gcc.dg/vect/bb-slp-39.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target vect_double } */
   3
   4 double x[1024];
   5
   6 void foo (double *p)
   7 {
   8   x[0] = 1.;
   9   x[1] = 2.;
  10   *p = 7.; // aliasing store
  11   x[0] = x[0] + 1;
  12   x[1] = x[1] + 1;
  13   *p = 8.; // aliasing store
  14   x[1] = x[1] + 1;
  15   x[0] = x[0] + 1;
  16 }
  17
  18 /* See that we vectorize three SLP instances.  */
  19 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 3 "slp2" { target { ! { s390*-*-* riscv*-*-* } } } } } */
  20 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 5 "slp2" { target {   s390*-*-* riscv*-*-* } } } } */