Compiler generated feedback for Large Language Models

Fuente: arXiv
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Autores principales: Grubisic, Dejan, Cummins, Chris, Seeker, Volker, Leather, Hugh
Formato: Preprint
Publicado: 2024
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author Grubisic, Dejan
Cummins, Chris
Seeker, Volker
Leather, Hugh
author_facet Grubisic, Dejan
Cummins, Chris
Seeker, Volker
Leather, Hugh
contents We introduce a novel paradigm in compiler optimization powered by Large Language Models with compiler feedback to optimize the code size of LLVM assembly. The model takes unoptimized LLVM IR as input and produces optimized IR, the best optimization passes, and instruction counts of both unoptimized and optimized IRs. Then we compile the input with generated optimization passes and evaluate if the predicted instruction count is correct, generated IR is compilable, and corresponds to compiled code. We provide this feedback back to LLM and give it another chance to optimize code. This approach adds an extra 0.53% improvement over -Oz to the original model. Even though, adding more information with feedback seems intuitive, simple sampling techniques achieve much higher performance given 10 or more samples.
format Preprint
id arxiv_https___arxiv_org_abs_2403_14714
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Compiler generated feedback for Large Language Models
Grubisic, Dejan
Cummins, Chris
Seeker, Volker
Leather, Hugh
Programming Languages
Machine Learning
We introduce a novel paradigm in compiler optimization powered by Large Language Models with compiler feedback to optimize the code size of LLVM assembly. The model takes unoptimized LLVM IR as input and produces optimized IR, the best optimization passes, and instruction counts of both unoptimized and optimized IRs. Then we compile the input with generated optimization passes and evaluate if the predicted instruction count is correct, generated IR is compilable, and corresponds to compiled code. We provide this feedback back to LLM and give it another chance to optimize code. This approach adds an extra 0.53% improvement over -Oz to the original model. Even though, adding more information with feedback seems intuitive, simple sampling techniques achieve much higher performance given 10 or more samples.
title Compiler generated feedback for Large Language Models
topic Programming Languages
Machine Learning
url https://arxiv.org/abs/2403.14714