void foo() { while (1) { } }

int main() {
	foo();
	__builtin_unreachable();
}

define void @foo() local_unnamed_addr #0 {
  br label %1

; <label>:1:                                      ; preds = %0, %1
  br label %1
}

; Function Attrs: norecurse noreturn nounwind readnone ssp uwtable
define i32 @main() local_unnamed_addr #0 {
  unreachable
}