CLANG + C2 - Engineering/Futures/Measurements
summary
Details of the clang hookup to the Microsoft backend: a clang + c2.dll bridge that reads LLVM bitcode, converts to C2 IR and targets four architectures with debug and optimized output, aiming to ship in November and contribute back by February. Delivered features include control-flow auto-vectorization, co-routines with heap frames for yield/await, Guard CFG security requiring OS/linker/tooling changes, incremental whole‑program analysis, and Xbox PGO. Internal tests show 99% correct across four architectures and the bridge overhead is <1% of compile cycles; large apps (Bing Maps, cross‑platform libraries) compile and run.
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chapters (14)
- 0:00Introduction
- 1:44Compiler Importance
- 4:14Validation and Safety
- 7:15Secure Code Generation
- 10:57Asynchronous Model
- 12:29Performance Enhancements
- 14:59Whole Program Analysis
- 20:36Architectural Overview
- 24:12Clang C2 Status
- 26:40Community Collaboration
- 31:54Cross-Platform Goals
- 37:29Performance and Demo
- 43:15Exception Handling Demo
- 50:41Q&A and Closing
