ubuntu-buildroot/output/build/host-gcc-initial-11.4.0/gcc/testsuite/gcc.target/nds32/builtin-isb.c

/* Verify that we generate isb instruction with builtin function.  */

/* { dg-do compile }  */
/* { dg-options "-O0" }  */
/* { dg-final { scan-assembler "\\tisb" } }  */

void
test (void)
{
  __builtin_nds32_isb ();
}