From 2adb1043f48c4264616abba2fbbb3ca117a8d565 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Sat, 11 Feb 2023 14:23:48 +0900
Subject: [PATCH] array.c (mrb_ary_push_m): call mrb_ary_push() when `argc ==
 1`

---
 src/array.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/array.c b/src/array.c
index c5e62d32f..82cab550d 100644
--- a/src/array.c
+++ b/src/array.c
@@ -543,9 +543,13 @@ mrb_ary_push_m(mrb_state *mrb, mrb_value self)
   mrb_int len, len2;
   struct RArray *a;
 
+  argc = mrb_get_argc(mrb);
+  if (argc == 1) {
+    mrb_ary_push(mrb, self, mrb_get_argv(mrb)[0]);
+    return self;
+  }
   a = mrb_ary_ptr(self);
   ary_modify(mrb, a);
-  argc = mrb_get_argc(mrb);
   len = ARY_LEN(a);
   len2 = len + argc;
   if (ARY_CAPA(a) < len2) {