Focus Area

As we look forward to the advancements in .NET 10, there are several key areas of focus that will drive development and improvements within JIT. These priorities aim to enhance performance and overall efficiency, ensuring that JIT continues to meet the evolving needs of developers and the performance demands of various workloads. Here are some of the primary focus areas for JIT in .NET 10:

• Advaced architectural features
• De-Abstraction
• Foundational Optimizations

Advanced Architecture

• Intel APX Intel architecture improvements for .NET 10 #108869
• Improve Arm64 Performance in .NET 10 #109652

De-Abstraction

• JIT: De-abstraction in .NET 10 #108913
• Array Enumeration De-Abstraction
• Stack Allocation Improvements
• Delegate GDV Improvements
• PGO Improvements
• Inlining improvements with functions with exception handling (EH)

JIT Foundational Optimizations

• Flow Graph JIT: Flowgraph Modernization and Improved Block Layout in .NET 10 #107749
• PGO profile consistency and repair JIT: Flowgraph Modernization and Improved Block Layout in .NET 10 #107749

Opportunistic items

• Struct improvements on physical promotion JIT struct work planned for .NET 10 #109635
• Loop optimizations Improve JIT loop optimizations (.NET 10) #108901
• CodeGen Infrastructure work CodeGen infrastructure work (.NET 10) #108904

Moved to Future

JIT Foundational Optimizations

• Inter-Procedural Analysis Framework (IPA) JIT: Interprocedural Analysis (IPA) in .NET 10 #108931

Opportunistic items

• [Experiment] RyuJIT as IL Scanner for ILC Use RyuJIT as IL scanner in NativeAOT #83021
• ABI Clean-up
• JitOptRepeat JIT: Productize JitOptRepeat #108902
• LSRA improvements