1 files changed, 84 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/cacheir/call-bound-scripted.js b/js/src/jit-test/tests/cacheir/call-bound-scripted.js
new file mode 100644
index 0000000000..960ca1f8ac
--- /dev/null
+++ b/js/src/jit-test/tests/cacheir/call-bound-scripted.js
@@ -0,0 +1,84 @@
+function testNumBoundArgsGuard() {
+    function f(a, b, c, d, e, f, g, h) {
+        return [a, b, c, d, e, f, g, h].join(",");
+    }
+    var arr = [
+        f.bind(null, 1, 2, 3, 4, 5, 6),
+        f.bind(null, 4, 5, 6, 7, 8, 9),
+        f.bind(null, 1, 2),
+        f.bind(null, 1),
+    ];
+    var expected = [
+        "1,2,3,4,5,6,10,11",
+        "4,5,6,7,8,9,10,11",
+        "1,2,10,11,12,13,14,15",
+        "1,10,11,12,13,14,15,",
+    ];
+    for (var i = 0; i < 100; i++) {
+        assertEq(arr[0](10, 11, 12, 13, 14, 15), expected[0]);
+        assertEq(arr[1](10, 11, 12, 13, 14, 15), expected[1]);
+        assertEq(arr[2](10, 11, 12, 13, 14, 15), expected[2]);
+        assertEq(arr[3](10, 11, 12, 13, 14, 15), expected[3]);
+        assertEq(arr[i % arr.length](10, 11, 12, 13, 14, 15), expected[i % arr.length]);
+    }
+}
+testNumBoundArgsGuard();
+
+function testJSFunctionGuard() {
+    var arr = [
+        (x => x * 0).bind(null, 1),
+        (x => x * 1).bind(null, 2),
+        (x => x * 2).bind(null, 3),
+        (x => x * 3).bind(null, 4),
+        (x => x * 4).bind(null, 5),
+        (x => x * 5).bind(null, 6),
+        (x => x * 6).bind(null, 7),
+        (x => x * 7).bind(null, 8),
+        (x => x * 8).bind(null, 9),
+    ];
+    var boundNative = Math.abs.bind(null, -123);
+    var boundProxy = (new Proxy(x => x * 42, {})).bind(null, 7);
+
+    for (var i = 0; i < 100; i++) {
+        var idx = i % arr.length;
+        var fun1 = arr[idx];
+        var expected1 = idx * (idx + 1);
+        assertEq(fun1(), expected1);
+        var fun2 = i > 70 ? boundNative : fun1;
+        assertEq(fun2(), i > 70 ? 123 : expected1);
+        var fun3 = i > 70 ? boundProxy : fun1;
+        assertEq(fun3(), i > 70 ? 294 : expected1);
+    }
+}
+testJSFunctionGuard();
+
+function testCrossRealmTarget() {
+    globalThis.num = "FAIL";
+
+    var globals = [];
+    for (var i = 0; i < 4; i++) {
+        var g = newGlobal({sameCompartmentAs: this});
+        g.num = i;
+        globals.push(g);
+    }
+    var arr = globals.map(g => g.evaluate("(x => this.num)"));
+    arr = arr.map(f => Function.prototype.bind.call(f, null));
+
+    for (var i = 0; i < 200; i++) {
+        assertEq(arr[0](), 0);
+        var idx = i % arr.length;
+        assertEq(arr[idx](), idx);
+    }
+}
+testCrossRealmTarget();
+
+// Bug 1819651.
+function testReturnsItself() {
+    var fun = function() { return boundFun; };
+    var boundFun = fun.bind(null);
+    for (var i = 0; i < 20; i++) {
+        assertEq(boundFun(), boundFun);
+        assertEq(new boundFun(), boundFun);
+    }
+}
+testReturnsItself();