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EDIT - nvm, the CS241 UWaterloo course doesn't cover SSA. In case anybody's interested in learning the basics, here's some course notes to a compilers class wh

• CalChris 5y ago
  Your notes, while honestly very good, don't cover data flow analysis or Single Static Assignment (SSA) which is what LLVM IR [1] uses and which are the tools that the article's optimizations are based on. Hell, LLVM backend engineers rarely even look at IR. We mostly look at Generic Machine IR [2]. [1] https://llvm.org/docs/LangRef.html https://llvm.org/docs/LangRef.html [2] https://llvm.org/docs/GlobalISel/GMIR.html https://llvm.org/docs/GlobalISel/GMIR.html
  • srcreigh 5y ago
    Ah, my bad. When you said "backend" I thought you mean "HTTP backend" hence my over-simplification. You're right -- SSA isn't covered in that course. Cheers.
• dleslie 5y ago
  Interesting, in my day SFU kept this til 3rd year, as CMPT379 IIRC, and only as an option for Theoretical or Systems paths. Looks like it's still 379; not sure about the optional component. http://anoopsarkar.github.io/compilers-class/ http://anoopsarkar.github.io/compilers-class/
• macintux 5y ago
  Decades ago I participated in some group programming contest for universities (in person, not online). We did terribly, but mainly I remember being in awe of how quickly Waterloo was solving the challenges.