Small optimizations to parseInt

src/v8natives.js

Index: src/v8natives.js
===================================================================
--- src/v8natives.js	(revision 3247)
+++ src/v8natives.js	(working copy)
@@ -95,8 +95,8 @@
     // they make parseInt on a string 1.4% slower (274ns vs 270ns).
     if (%_IsSmi(string)) return string;
     if (IS_NUMBER(string) &&
-        ((string < -0.01 && -1e9 < string) ||
-            (0.01 < string && string < 1e9))) {
+        ((0.01 < string && string < 1e9) ||
+            (string < -0.01 && -1e9 < string))) {

[Lasse Reichstein, 2009/11/11 11:43:34]

Just for readability, could you swap the terms of the last '&&'?
It's probably safe to assume that positive numbers outweigh negative numbers as
argument to parseInt, so it's a fine optimization (although I doubt it will make
a measureable difference in practice).

       // Truncate number.
       return string | 0;
     }