My 2025 in LLVM: samesign, HashRecognize, and VPlan

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As the year draws to a close, it helps to look back and reflect on some key changes in LLVM. The article is written from my perspective, summarizing work I landed, along with adjacent work, in chronological order. In September 2024, Nikita Popov proposed signedness-independent integer-compares , and the necessary work for enabling optimizations with it occupied the first two months of my 2025. In…

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