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SN Systems Tech Blog
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    What would it take to remove debug intrinsics?

    ARTICLE BY: Jeremy Morse
    POSTED: Sep 01, 2023
    TAGS: LLVM Developers Meeting, Toolchain

    It is a truth universally acknowledged that representing LLVMs debug-info with intrinsics is a poor design, slowing compile-time performance and creating new categories of bugs. However, removing them is not easy as our APIs lack a way of describing instruction positions from outside of the instruction list. In this talk I'll illustrate what's bad about the current design and explore the design space of possible solutions.

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    Improving debug variable location coverage by using even more SSA

    ARTICLE BY: Jeremy Morse
    POSTED: Jan 05, 2022
    TAGS: LLVM Developers Meeting, Toolchain

    In this talk, Jeremy explains how LLVM has been tracking variable locations to date and its limitations, how a proposed new technique for tracking variable locations works, and how this can become a pair of SSA (Single Static Assignment) problems to solve at the end of compilation.

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