1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/warp/guard-string-to-number-or-int32.js b/js/src/jit-test/tests/warp/guard-string-to-number-or-int32.js
new file mode 100644
index 0000000000..8a28d46f99
--- /dev/null
+++ b/js/src/jit-test/tests/warp/guard-string-to-number-or-int32.js
@@ -0,0 +1,36 @@
+function stringToNumber() {
+  function f(s) {
+    return ~~s;
+  }
+
+  var q = 0;
+  for (var i = 0; i < 200; ++i) {
+    q += f("1");
+    q += f("0x2");
+    q += f("0b11");
+    q += f("0o4");
+
+    // Invalid inputs: ~~Nan == 0
+    q += f("z");
+    q += f("0x2.3");
+    q += f("0x1.fp4");
+  }
+  assertEq(q, (1 + 2 + 3 + 4) * 200);
+}
+stringToNumber();
+
+function stringToInt32() {
+  function f(s) {
+    return s - 0;
+  }
+
+  var q = 0;
+  for (var i = 0; i < 200; ++i) {
+    q += f("1");
+    q += f("0x2");
+    q += f("0b11");
+    q += f("0o4");
+  }
+  assertEq(q, (1 + 2 + 3 + 4) * 200);
+}
+stringToInt32();