woah, buggy! look at that send, it's completely wrong!

Author: XrXr

zjit/src/hir.rs

@@ -4187,6 +4187,29 @@ mod tests {
               Return v10
         "#]]);
     }
+
+    #[test]
+    fn dupn() {
+        eval("
+            def test(x) = (x[0, 1] ||= 0)
+        ");
+        assert_method_hir_with_opcode("test", YARVINSN_dupn, expect![[r#"
+            fn test:
+            bb0(v0:BasicObject, v1:BasicObject):
+              v3:NilClassExact = Const Value(nil)
+              v4:Fixnum[0] = Const Value(0)
+              v5:Fixnum[1] = Const Value(1)
+              v7:BasicObject = SendWithoutBlock v5, :[], v5, v5
+              v8:CBool = Test v7
+              IfTrue v8, bb1(v0, v1, v3, v1, v4, v5, v7)
+              v10:Fixnum[0] = Const Value(0)
+              v12:BasicObject = SendWithoutBlock v1, :[]=, v4, v5, v10
+              Return v10
+            bb1(v14:BasicObject, v15:BasicObject, v16:NilClassExact, v17:BasicObject, v18:Fixnum[0], v19:Fixnum[1], v20:BasicObject):
+              Return v20
+        "#]]);
+
+    }
 }
 
 #[cfg(test)]