Javascript:SpiderMonkey:2013Projects

	THIS PAGE IS OBSOLETE
	This article is in parts, or in its entirety, outdated. Hence, the information presented on this page may be incorrect, and should be treated with due caution. Visit SpiderMonkey.dev for more up to date information.

Projects Under Consideration

• Generational Garbage Collection, Terrence Cole/Steve Fink/Jon Coppeard, https://wiki.mozilla.org/Javascript:SpiderMonkey:ProjectGenerationGarbageCollection
• OdinMonkey (Asm.js), Luke/Sean/Hannes, https://wiki.mozilla.org/Javascript:SpiderMonkey:OdinMonkey
• JavaScript Parrellelism, Sean and Luke
  • Parallel JS, Mozilla Research
  • Parallel Arrays
  • ArrayBuffer sharing
  • Thread support
• EcmaScript 6 Features, Jason Orendorff, https://wiki.mozilla.org/ES6_plans
  • Modules - Edy & Jason
• EcmaScript 6 Testing, Jeff Walden, https://wiki.mozilla.org/User:Waldo/ES6_testing
• Baseline, Kannan/Jan
  • Optimize generators and proxies in baseline
  • Make Ion use Baseline information
• BinaryData: bug 578700, Nikhil Marathe
• Internationalization, Jeff Walden
  • Write up Norbert's work and API - https://wiki.mozilla.org/User:Waldo/Internationalization_API
• Memory Usage
  • Lazy Byte Code Analysis, Brian Hackett, bug 678037 (RESOLVED FIXED)
  • Script Analysis, Kannan Vijayan, bug 864502 (RESOLVED FIXED)
• ARM, Marty Rosenberg
  • Assembly Buffer changes - needed for asm.js
  • Add support for all 32 double registers
  • thumb2 backend - http://en.wikipedia.org/wiki/ARM_architecture#Thumb-2
    • new assembler for thumb2
  • Add a peephole pass: bug 734830
  • Support for operand2 and fused-multiply-add: bug 777659
  • Support for pre and post increment
  • Front-end on top of the macro assembler to get yarr to use it (will likely generate better code)
• Type Inference, Brian Hackett
  • Reduce TI memory usage bug 804676 (RESOLVED FIXED)
• FirefoxOS
  • Partner benchmark optimizations
  • B2G Optimizations, Nicolas
• DevTools, Jim Blandy
  • Debugability of full stack
  • JSD2 Trace Profiler bug 797876
  • Profiler
    • Crash Bugs - Typically seen while toggling the profiler and/or private browsing
      • bug 802798
      • bug 836938
      • bug 832812 (RESOLVED FIXED)
      • bug 788495 (RESOLVED INVALID because crash was in removed JM code)
    • prototype/static function name bug 838265 (RESOLVED WORKSFORME)
    • multithreaded bug 863703
    • Column info bug 785922
• Performance
  • Faster DOM <==> JIT Interaction
  • Shumway and IonMonkey JIT code-gen caching, Till Schneidereit
    • Lazy function cloning - if compiled in one apartment clone to others instead of re-compiling
    • Disk Caching - investigate disk caching for functions
    • Re-Lazificiation of functions - memory savings for cold byte code (JITs already do this for codegen)
• Hygiene
  • Remove JaegerMonkey code from the tree bug 857845 (RESOLVED FIXED in Firefox 24)