test: Add test for fixed issue #11736

Closes #11736

src/test/run-pass/issue-11736.rs

@@ -0,0 +1,35 @@
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+extern crate collections;
+extern crate std;
+
+use collections::Bitv;
+
+fn main() {
+    // Generate sieve of Eratosthenes for n up to 1e6
+    let n = 1000000u;
+    let sieve = Bitv::new(n+1, true);
+    let limit: uint = (n as f32).sqrt() as uint;
+    for i in range(2, limit+1) {
+        if sieve[i] {
+            let mut j = 0;
+            while i*i + j*i <= n {
+                sieve[i*i+j*i] = false;
+                j += 1;
+            }
+        }
+    }
+    for i in range(2, n+1) {
+        if sieve[i] {
+        }
+    }
+}
+