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Google Proposes JSIR As A High-Level IR For JavaScript

([LLVM] 6 Hours Ago JSIR - JavaScript IR)


Google engineers have been developing JSIR as a high-level intermediate representation (JSIR) for JavaScript that they are already using in production at the company code code analysis and transforming other code/bytecode to JavaScript as well as for deobfuscating JavaScript code.

Zhixun Tan of Google's compiler team issued a request for comments (RFC) today on JSIR that builds off in part of the work of the LLVM and MLIR communities. Most JavaScript tooling to date relies on AST-based approaches rather than IR, which is where they are working on JSIR to fill that void.

JSIR is intended to be a public and stable IR and capture all source-level information. Google engineers are currently soliciting LLVM/MLIR developers in whether interest would be there in upstreaming JSIR into MLIR.

Those curious can see today's [1]RFC on JSIR for the technical overview. JSIR is already open-source and available on [2]GitHub .



[1] https://discourse.llvm.org/t/rfc-jsir-a-high-level-ir-for-javascript/90456

[2] https://github.com/google/jsir



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