diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/ion/throw.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/ion/throw.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,96 @@
+function thrower1(x) {
+    throw x + 2;
+
+    // Dead code, should be ignored.
+    throw ++x;
+    return x;
+}
+function test1() {
+    // If we ever inline functions containing JSOP_THROW,
+    // this shouldn't assert.
+    function f(x) {
+        thrower1(x + 1);
+    }
+    for (var i=0; i<11000; i++) {
+        try {
+            f(i);
+            assertEq(0, 1);
+        } catch(e) {
+            assertEq(e, i + 3);
+        }
+    }
+}
+test1();
+
+// Test throwing from an uncompilable (interpreted) function.
+function getException(f) {
+    try {
+        f();
+        assertEq(0, 1);
+    } catch(e) {
+        return e;
+    }
+    assertEq(0, 1);
+}
+
+function thrower2(x) {
+    if (x > 90)
+        throw x;
+    with ({}) {}; // Abort compilation...(?)
+}
+function test2() {
+    for (var i = 0; i < 100; i++) {
+        thrower2(i);
+    }
+}
+assertEq(getException(test2), 91);
+
+// Throwing |this| from a constructor.
+function thrower3(x) {
+    this.x = x;
+    if (x > 90)
+        throw this;
+}
+function test3() {
+    for (var i=0; i < 100; i++) {
+        new thrower3(i);
+    }
+}
+assertEq(getException(test3).x, 91);
+
+// Throwing an exception in various loop blocks.
+var count = 0;
+function thrower4(x) {
+    throw count++;
+    count += 12345; // Shouldn't be executed.
+}
+function test4_1() {
+    var i = 0;
+    for (new thrower4(i); i < 100; i++) {
+        count += 2000; // Shouldn't be executed.
+    }
+}
+function test4_2() {
+    for (var i = 0; thrower4(i); i++) {
+	count += 3000; // Shouldn't be executed.
+    }
+}
+function test4_3() {
+    for (var i = 0; i < 100; thrower4(i)) {
+	count += 5;
+    }
+}
+function test4_4() {
+    for (var i = 0; i < 10; i++) {
+        if (i > 8)
+            thrower4();
+        count += i;
+    }
+}
+for (var i = 0; i < 100; i++) {
+    assertEq(getException(test4_1), count-1);
+    assertEq(getException(test4_2), count-1);
+    assertEq(getException(test4_3), count-1);
+    assertEq(getException(test4_4), count-1);
+}
+assertEq(count, 4500);