1 files changed, 60 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/cacheir/typedarray-constructor-objects.js b/js/src/jit-test/tests/cacheir/typedarray-constructor-objects.js
new file mode 100644
index 0000000000..5733bc4c29
--- /dev/null
+++ b/js/src/jit-test/tests/cacheir/typedarray-constructor-objects.js
@@ -0,0 +1,60 @@
+function testArrayBufferThenOther() {
+    var buf = new ArrayBuffer(4);
+    var other = [1, 2];
+    for (var i = 0; i < 150; i++) {
+        var arg = i < 100 ? buf : other;
+        var ta = new Int32Array(arg);
+        assertEq(ta.length, arg === buf ? 1 : 2);
+    }
+}
+testArrayBufferThenOther();
+
+function testSharedArrayBufferThenOther() {
+    if (!this.SharedArrayBuffer) {
+        return;
+    }
+    var buf = new SharedArrayBuffer(4);
+    var other = [1, 2];
+    for (var i = 0; i < 150; i++) {
+        var arg = i < 100 ? buf : other;
+        var ta = new Int32Array(arg);
+        assertEq(ta.length, arg === buf ? 1 : 2);
+    }
+}
+testSharedArrayBufferThenOther();
+
+function testArrayThenArrayBuffer() {
+    var arr = [1, 2, 3];
+    var buf = new ArrayBuffer(5);
+    for (var i = 0; i < 150; i++) {
+        var arg = i < 100 ? arr : buf;
+        var ta = new Int8Array(arg);
+        assertEq(ta.length, arg === arr ? 3 : 5);
+    }
+}
+testArrayThenArrayBuffer();
+
+function testArrayThenSharedArrayBuffer() {
+    if (!this.SharedArrayBuffer) {
+        return;
+    }
+    var arr = [1, 2, 3];
+    var buf = new SharedArrayBuffer(5);
+    for (var i = 0; i < 150; i++) {
+        var arg = i < 100 ? arr : buf;
+        var ta = new Int8Array(arg);
+        assertEq(ta.length, arg === arr ? 3 : 5);
+    }
+}
+testArrayThenSharedArrayBuffer();
+
+function testArrayThenWrapper() {
+    var arr = [1, 2, 3];
+    var wrapper = newGlobal({newCompartment: true}).evaluate("[1, 2]");
+    for (var i = 0; i < 150; i++) {
+        var arg = i < 100 ? arr : wrapper;
+        var ta = new Int8Array(arg);
+        assertEq(ta.length, arg === arr ? 3 : 2);
+    }
+}
+testArrayThenWrapper();