2026 EuroLLVM - STRTAB Hash & Slash: Reducing STRTAB size by hashing its entries

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2026 EuroLLVM Developers' Meeting
https://llvm.org/devmtg/2026-04/
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Title: STRTAB Hash & Slash: Reducing STRTAB size by hashing its entries
Speaker: Vy Nguyen
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Slides: https://llvm.org/devmtg/2026-04/slides/lightning_talk/lightning_talk_nguyen.pdf
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The string table (STRTAB) accounts for a significant portion of object file overhead at Google, with long mangled names, such as those from Protos, frequently reaching 35% of the total file size. Optimizing this space is the key to faster builds and leaner binaries. In this talk, we propose an approach to reduce the string table through hashing its entries, demonstrating a reduction in overall binary size.
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