`vm_call_single_noarg_inline_builtin`

If the iseq only contains `opt_invokebuiltin_delegate_leave` insn and
the builtin-function (bf) is inline-able, the caller doesn't need to
build a method frame.

`vm_call_single_noarg_inline_builtin` is fast path for such cases.

1 files changed, 2 insertions, 0 deletions

diff --git a/vm_core.h b/vm_core.h
index f7313205ee..43e95a5dbe 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -371,6 +371,8 @@ enum rb_builtin_attr {
     BUILTIN_ATTR_LEAF = 0x01,
     // The iseq does not allocate objects.
     BUILTIN_ATTR_NO_GC = 0x02,
+    // This iseq only contains single `opt_invokebuiltin_delegate_leave` instruction with 0 arguments.
+    BUILTIN_ATTR_SINGLE_NOARG_INLINE = 0x04,
 };
 
 typedef VALUE (*rb_jit_func_t)(struct rb_execution_context_struct *, struct rb_control_frame_struct *);