Perf test for constant load

tests/perf/test-const-load.js

@@ -0,0 +1,116 @@
+/*
+ *  Loading constant to register.
+ */
+
+function test() {
+    var i;
+    var t;
+
+    for (i = 0; i < 1e7; i++) {
+        t = 123.0;
+        t = 123.1;
+        t = 123.2;
+        t = 123.3;
+        t = 123.4;
+        t = 123.5;
+        t = 123.6;
+        t = 123.7;
+        t = 123.8;
+        t = 123.9;
+
+        t = 123.0;
+        t = 123.1;
+        t = 123.2;
+        t = 123.3;
+        t = 123.4;
+        t = 123.5;
+        t = 123.6;
+        t = 123.7;
+        t = 123.8;
+        t = 123.9;
+
+        t = 123.0;
+        t = 123.1;
+        t = 123.2;
+        t = 123.3;
+        t = 123.4;
+        t = 123.5;
+        t = 123.6;
+        t = 123.7;
+        t = 123.8;
+        t = 123.9;
+
+        t = 123.0;
+        t = 123.1;
+        t = 123.2;
+        t = 123.3;
+        t = 123.4;
+        t = 123.5;
+        t = 123.6;
+        t = 123.7;
+        t = 123.8;
+        t = 123.9;
+
+        t = 123.0;
+        t = 123.1;
+        t = 123.2;
+        t = 123.3;
+        t = 123.4;
+        t = 123.5;
+        t = 123.6;
+        t = 123.7;
+        t = 123.8;
+        t = 123.9;
+
+        t = 123.0;
+        t = 123.1;
+        t = 123.2;
+        t = 123.3;
+        t = 123.4;
+        t = 123.5;
+        t = 123.6;
+        t = 123.7;
+        t = 123.8;
+        t = 123.9;
+
+        t = 123.0;
+        t = 123.1;
+        t = 123.2;
+        t = 123.3;
+        t = 123.4;
+        t = 123.5;
+        t = 123.6;
+        t = 123.7;
+        t = 123.8;
+        t = 123.9;
+
+        t = 123.0;
+        t = 123.1;
+        t = 123.2;
+        t = 123.3;
+        t = 123.4;
+        t = 123.5;
+        t = 123.6;
+        t = 123.7;
+        t = 123.8;
+        t = 123.9;
+
+        t = 123.0;
+        t = 123.1;
+        t = 123.2;
+        t = 123.3;
+        t = 123.4;
+        t = 123.5;
+        t = 123.6;
+        t = 123.7;
+        t = 123.8;
+        t = 123.9;
+    }
+}
+
+try {
+    test();
+} catch (e) {
+    print(e.stack || e);
+    throw e;
+}