gcc/testsuite/gcc.target/powerpc/pr108272-1.c

/* { dg-require-effective-target powerpc_p9modulo_ok } */
/* If the default cpu type is power10 or later, type __vector_quad is
   supported.  To keep the test point available all the time, this case
   specifies -mdejagnu-cpu=power9 here.  */
/* { dg-options "-mdejagnu-cpu=power9" } */

/* Verify there is no ICE and don't check the error messages on unsupported
   type since they could be fragile and are not test points of this case.  */

/* { dg-excess-errors "pr108272-1" } */

void
foo (void)
{
  __vector_quad acc;
  asm("#..." : "=d"(acc));
}