Changeset 31208 in webkit for trunk/JavaScriptCore/wtf/MathExtras.h

Timestamp:

Mar 21, 2008, 4:14:49 AM (17 years ago)

Author:

[email protected]

Message:

Reviewed by Oliver Hunt.

Consolidate static identifier initializers within CommonIdentifiers.

No reliably measurable change on SunSpider; maybe a tiny improvement (within 0.2%).

• kjs/CommonIdentifiers.h: Added static identifiers that were lazily initialized throughout the code.

• kjs/date_object.cpp: (KJS::DateObjectImp::DateObjectImp):
• kjs/function_object.cpp: (KJS::FunctionPrototype::FunctionPrototype):
• kjs/object_object.cpp: (KJS::ObjectPrototype::ObjectPrototype):
• kjs/regexp_object.cpp: (KJS::RegExpPrototype::RegExpPrototype): Use the values from CommonIdentifiers.

• kjs/lookup.h: Caching the identifier in a static wasn't a win on SunSpider, removed it.

• kjs/value.h: (KJS::jsNaN): We already have a shared NaN value, no need for a duplicate here.

• wtf/MathExtras.h: (wtf_atan2): Having local variables for numeric_limits constants is good for readability, but there is no reason to keep them static.

• JavaScriptCore.exp: Don't needlessly export JSGlobalObject::s_head.

File:

• trunk/JavaScriptCore/wtf/MathExtras.h (modified) (1 diff)

trunk/JavaScriptCore/wtf/MathExtras.h

@@ -96 +96 @@
 inline double wtf_atan2(double x, double y)
 {
-    static double posInf = std::numeric_limits<double>::infinity();
-    static double negInf = -std::numeric_limits<double>::infinity();
-    static double nan = std::numeric_limits<double>::quiet_NaN();
+    double posInf = std::numeric_limits<double>::infinity();
+    double negInf = -std::numeric_limits<double>::infinity();
+    double nan = std::numeric_limits<double>::quiet_NaN();
 
     double result = nan;