diff --git a/ext/opcache/tests/jit/bug81512.phpt b/ext/opcache/tests/jit/bug81512.phpt
new file mode 100644
index 00000000000..18583643905
--- /dev/null
+++ b/ext/opcache/tests/jit/bug81512.phpt
@@ -0,0 +1,33 @@
+--TEST--
+Bug #81512: Unexpected behavior with arrays and JIT
+--INI--
+opcache.enable=1
+opcache.enable_cli=1
+opcache.file_update_protection=0
+opcache.jit_buffer_size=1M
+--FILE--
+<?php
+$pipe = [['val1'],['val2'],];
+
+for ($i = 0; $i < 30; ++$i) {
+        echo "$i ";
+        if (!is_pipeline($pipe)) {
+                echo 'ERROR ';
+        }
+}
+
+function is_pipeline($pipeline): bool {
+        foreach ($pipeline as $stage) {
+                if (!is_array($stage)) {
+                        return false; // must never happen
+                }
+
+                $stage = (array) $stage;
+                reset($stage);
+        }
+
+        return true;
+}
+?>
+--EXPECT--
+0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29