Lightning Talk: Keeping Up to LLVM IR: An Introduction to LLVM IR
summary
LLVM IR is a vendor‑agnostic, strongly typed intermediate language available as bitcode and textual IR and written in SSA form. Examples show a simple square function (xx) with concrete types like i32 and vector/aggregate types, plus control flow handled by phi nodes*. Compilers that use LLVM as a backend (Clang, rustc, Julia) emit IR for optimizations such as dead‑code elimination and register allocation and to generate code for CPU, GPU and accelerators; slides link contains the examples.
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chapters (6)
- 0:00Introduction to LLVM IR
- 1:18Optimization objectives
- 1:54Working with LLVM IR
- 2:40Syntax and data types
- 3:43Understanding SSA form
- 4:50Resources and tools
