__asm__() outside function

gcc/pcc allow __asm__() outside a function body:
    extern void vide(void);
    __asm__("vide: ret");

    There is many such code in the Linux kernels.

tests/tests2/85-asm-outside-function.c

@@ -0,0 +1,7 @@
+extern void vide(void);
+__asm__("vide: ret");
+
+int main() {
+    vide();
+    return 0;
+}