ClangOz: parallel constant evaluation of C++ map and reduce operations

Paul Keir; Andrew Gozillon

ClangOz: parallel constant evaluation of C++ map and reduce operations

Paul Keir, Andrew Gozillon

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Abstract

Interest in metaprogramming, reflection, and compile-time evaluation continues to inspire and foster innovation among the users and designers of the C++ programming language. Regrettably, the impact on compile-times of such features can be significant; and outside of build systems, multi-core parallelism is unable to bring down compilation times of individual translation units. We present ClangOz, a novel Clang-based research compiler that addresses this issue by evaluating annotated constant expressions in parallel, thereby reducing compilation times.

Original language	English
Publication status	Published - 5 Mar 2025
Event	Scottish Programming Languages Seminar: March 2025 Meeting - University of Stirling and online, Stirling, United Kingdom Duration: 5 Mar 2025 → … https://spli.scot/spls/meetings/2025/march/

Seminar

Seminar	Scottish Programming Languages Seminar
Country/Territory	United Kingdom
City	Stirling
Period	5/03/25 → …
Internet address	https://spli.scot/spls/meetings/2025/march/

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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2025 02 20 Keir et al ClangOz acceptedAccepted author manuscript, 19.9 KB

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title = "ClangOz: parallel constant evaluation of C++ map and reduce operations",

abstract = "Interest in metaprogramming, reflection, and compile-time evaluation continues to inspire and foster innovation among the users and designers of the C++ programming language. Regrettably, the impact on compile-times of such features can be significant; and outside of build systems, multi-core parallelism is unable to bring down compilation times of individual translation units. We present ClangOz, a novel Clang-based research compiler that addresses this issue by evaluating annotated constant expressions in parallel, thereby reducing compilation times.",

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AU - Keir, Paul

AU - Gozillon, Andrew

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N2 - Interest in metaprogramming, reflection, and compile-time evaluation continues to inspire and foster innovation among the users and designers of the C++ programming language. Regrettably, the impact on compile-times of such features can be significant; and outside of build systems, multi-core parallelism is unable to bring down compilation times of individual translation units. We present ClangOz, a novel Clang-based research compiler that addresses this issue by evaluating annotated constant expressions in parallel, thereby reducing compilation times.

AB - Interest in metaprogramming, reflection, and compile-time evaluation continues to inspire and foster innovation among the users and designers of the C++ programming language. Regrettably, the impact on compile-times of such features can be significant; and outside of build systems, multi-core parallelism is unable to bring down compilation times of individual translation units. We present ClangOz, a novel Clang-based research compiler that addresses this issue by evaluating annotated constant expressions in parallel, thereby reducing compilation times.

UR - https://spli.scot/spls/meetings/2025/march/

M3 - Presentation

Y2 - 5 March 2025

ER -

ClangOz: parallel constant evaluation of C++ map and reduce operations

Abstract

Seminar

UN SDGs

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