gcc/testsuite/gcc.dg/vect/bb-slp-pr95839-2.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target vect_double } */
   3 /* { dg-additional-options "-w -Wno-psabi" } */
   4
   5 typedef double __attribute__((vector_size(16))) v2df;
   6
   7 v2df f(v2df a, v2df b)
   8 {
   9   return (v2df){a[0] + b[0], a[1] + b[1]};
  10 }
  11
  12 v2df g(v2df a, v2df b)
  13 {
  14   return (v2df){a[0] + b[1], a[1] + b[0]};
  15 }
  16
  17 /* Verify we manage to vectorize this with using the original vectors
  18    and do not end up with any vector CTORs.  */
  19 /* { dg-final { scan-tree-dump-times "basic block vectorized" 2 "slp2" } } */
  20 /* { dg-final { scan-tree-dump-not "vect_cst" "slp2" } } */