nashorn/test/examples/int-micro.js
changeset 17241 c337fefb8c84
child 24778 2ff5d7041566
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/test/examples/int-micro.js	Wed Apr 24 13:28:25 2013 +0200
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   - Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 
+ *   - Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ * 
+ *   - Neither the name of Oracle nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+function bench(name, func) {
+    var start = Date.now();
+    for (var iter = 0; iter < 5000000; iter++) {
+        func();
+    }
+    print(name + "\t" + (Date.now() - start));
+}
+
+function uint32(value) {
+    return function() {
+        value >>> 0;
+        value >>> 0;
+        value >>> 0;
+        value >>> 0;
+        value >>> 0;
+        value >>> 0;
+        value >>> 0;
+        value >>> 0;
+        value >>> 0;
+        value >>> 0;
+        value >>> 0;
+        value >>> 0;
+        value >>> 0;
+        value >>> 0;
+        value >>> 0;
+    };
+}
+
+function int32(value) {
+    return function() {
+        value >> 0;
+        value >> 0;
+        value >> 0;
+        value >> 0;
+        value >> 0;
+        value >> 0;
+        value >> 0;
+        value >> 0;
+        value >> 0;
+        value >> 0;
+        value >> 0;
+        value >> 0;
+        value >> 0;
+        value >> 0;
+        value >> 0;
+    };
+}
+
+print("\nToUint32");
+for (var i = 1; i < 3; i++) {
+    bench("infinity      ", uint32(Infinity));
+    bench("infinity neg  ", uint32(-Infinity));
+    bench("nan           ", uint32(NaN));
+    bench("small         ", uint32(1));
+    bench("small neg     ", uint32(-1));
+    bench("small frac    ", uint32(1.5));
+    bench("small neg frac", uint32(-1.5));
+    bench("large         ", uint32(9223372036854775807));
+    bench("large neg     ", uint32(-9223372036854775808));
+}
+
+print("\nToInt32");
+for (var i = 1; i < 3; i++) {
+    bench("infinity      ", int32(Infinity));
+    bench("infinity neg  ", int32(-Infinity));
+    bench("nan           ", int32(NaN));
+    bench("small         ", int32(1));
+    bench("small neg     ", int32(-1));
+    bench("small frac    ", int32(1.5));
+    bench("small neg frac", int32(-1.5));
+    bench("large         ", int32(9223372036854775807));
+    bench("large neg     ", int32(-9223372036854775808));
+}
+
+