Implement invokebuiltin_delegate

invokebuiltin_delegate is a special version of invokebuiltin used for
sending a contiguous subset of the current method's locals.

In some cases YJIT would already handle this for trivial cases it could
be inlined, implementing this OP allows it to work when the method isn't
inlinable (not marked as 'inline', does more than just call, not called
from yjit, etc).

1 files changed, 30 insertions, 0 deletions

diff --git a/bootstraptest/test_yjit.rb b/bootstraptest/test_yjit.rb
index fcf027d728..de20b3565e 100644
--- a/bootstraptest/test_yjit.rb
+++ b/bootstraptest/test_yjit.rb
@@ -1040,6 +1040,36 @@ assert_equal 'foo123', %q{
   make_str("foo", 123)
 }
 
+# test invokebuiltin_delegate as used inside Dir.open
+assert_equal '.', %q{
+  def foo(path)
+    Dir.open(path).path
+  end
+
+  foo(".")
+  foo(".")
+}
+
+# test invokebuiltin_delegate_leave in method called from jit
+assert_normal_exit %q{
+  def foo(obj)
+    obj.clone
+  end
+
+  foo(Object.new)
+  foo(Object.new)
+}
+
+# test invokebuiltin_delegate_leave in method called from cfunc
+assert_normal_exit %q{
+  def foo(obj)
+    [obj].map(&:clone)
+  end
+
+  foo(Object.new)
+  foo(Object.new)
+}
+
 # getlocal with 2 levels
 assert_equal '7', %q{
   def foo(foo, bar)