1 files changed, 46 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/ref-types/tables-stress.js b/js/src/jit-test/tests/wasm/ref-types/tables-stress.js
new file mode 100644
index 0000000000..2e13e76ba0
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/ref-types/tables-stress.js
@@ -0,0 +1,46 @@
+for ( let prefix of ['', '(table $prefix 0 32 funcref)']) {
+    let mod = new WebAssembly.Module(wasmTextToBinary(
+    `(module
+       (import "m" "item" (func $item (result externref)))
+       ${prefix}
+       (table $tbl 0 externref)
+       (func (export "run") (param $numiters i32)
+         (local $i i32)
+         (local $j i32)
+         (local $last i32)
+         (local $iters i32)
+         (local $tmp externref)
+         (local.set $last (table.grow $tbl (ref.null extern) (i32.const 1)))
+         (table.set $tbl (local.get $last) (call $item))
+         (loop $iter_continue
+           (local.set $i (i32.const 0))
+           (local.set $j (local.get $last))
+           (block $l_break
+             (loop $l_continue
+               (br_if $l_break (i32.ge_s (local.get $j) (local.get $i)))
+               (local.set $tmp (table.get $tbl (local.get $i)))
+               (if (i32.eqz (i32.rem_s (local.get $i) (i32.const 3)))
+                   (local.set $tmp (call $item)))
+               (table.set $tbl (local.get $i) (table.get $tbl (local.get $j)))
+               (table.set $tbl (local.get $j) (local.get $tmp))
+               (local.set $i (i32.add (local.get $i) (i32.const 1)))
+               (local.set $j (i32.sub (local.get $j) (i32.const 1)))
+               (br $l_continue))
+           (local.set $iters (i32.add (local.get $iters) (i32.const 1)))
+           (br_if $iter_continue (i32.lt_s (local.get $iters) (local.get $numiters)))))))`));
+
+    for (let [mode,freq] of [[14,100],  // Compact every 100 allocations
+                             [2,12],    // Collect every 12 allocations
+                             [7,100],   // Minor gc every 100 allocations
+                             [15,100]]) // Verify heap integrity
+    {
+        if (this.gczeal)
+            this.gczeal(mode,freq);
+        let k = 0;
+        let ins = new WebAssembly.Instance(mod, {m:{item:() => { return { x: k++ } }}}).exports;
+        for ( let i=0; i < 1000; i++ )
+            ins.run(1000);
+    }
+}
+
+