[webkit-reviews] review requested: [Bug 50270] [Qt] [Symbian] Reintroduce compiler optimizations for JSC : [Attachment 75201] Patch that adds optimization to JavaScriptCore lib

[bugzilla-daemon at webkit.org]

Norbert Leser <norbert.leser at nokia.com> has asked  for review:
Bug 50270: [Qt] [Symbian] Reintroduce compiler optimizations for JSC
https://bugs.webkit.org/show_bug.cgi?id=50270

Attachment 75201: Patch that adds optimization to JavaScriptCore lib
https://bugs.webkit.org/attachment.cgi?id=75201&action=review

------- Additional Comments from Norbert Leser <norbert.leser at nokia.com>
The included patch adds armcc compiler flags for symbian builds to optimize
JavaScriptCore library for performance (-O3 and -OTime).
Also, the performance improving MMP rule ALWAYS_BUILD_AS_ARM is added
conditionally for symbian builds on windows (linux builds use THUMB).

This patch was verified against JS performance tests Sunspider and V8. In both
cases, the optimization flag increases performance significantly (35% and 16%,
respectively).