Uploaded May 2025 | Updated September 2026, 2 weeks ago

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2025 EuroLLVM Developers' Meeting

llvm.org/devmtg/2025-04

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Title: LLVM IR -- Past, Present and Future

Speaker: Nikita Popov

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Slides: llvm.org/devmtg/2025-04/slides/technical_talk/popov_llvm_ir.pdf

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LLVM IR (intermediate representation) is the foundation that LLVM is built on. It has stood the test of time, with many fundamentals remaining unchanged since its inception. At the same time, LLVM IR is continuously evolving to enable new optimizations and keep up with changing requirements. This talk will cover some high-level design considerations, past changes to IR design, as well as changes planned for the future.

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