1 files changed, 53 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bailout-spread.js b/js/src/jit-test/tests/ion/bailout-spread.js
new file mode 100644
index 0000000000..2b7105c735
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bailout-spread.js
@@ -0,0 +1,53 @@
+function f1(a,b,c,d) {
+    if (a < 0)
+        throw arguments;
+
+    return a + b + c + d;
+}
+
+function f2(a,b,c,d,e) {
+    return f1(a,b,c,d*e);
+}
+
+function f3(a,v) {
+    return f2(a, ...v);
+}
+
+function f4(i, j) {
+    return f3(i, [j,3,4,5]);
+}
+
+function f5(i) {
+    return f4(i, i);
+}
+
+// Clean jitcode
+gc(); gc();
+
+// Test bailouts through spreadcall
+for (var i = 0; i < 1000; ++i)
+{
+    bailAfter(i);
+    assertEq(f5(i), i+i+23);
+}
+
+// Test exception unwind bailout through spreadcall
+for (var i = 1; i < 100; ++i)
+{
+    let x;
+
+    try {
+        f5(-i);
+
+        // Unreachable
+        assertEq(1, 0);
+    }
+    catch (e) {
+        x = e;
+    }
+
+    assertEq(x[0], -i);
+    assertEq(x[1], -i);
+    assertEq(x[2],  3);
+    assertEq(x[3], 20);
+}