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Enable link-time optimisation for release builds - #1009
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Release builds use link-time optimisation where the toolchain supports it (check_ipo_supported); elsewhere the build is unchanged. Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
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It used to be that this took forever to link on Linux, which was why we didn't have it. I'll check on my machine again... |
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Alright, the future is now! My (relatively ancient Debian) |
MichaelRawson
approved these changes
Oct 5, 2026
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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I believe that IPO is doing something positive. However, it's worth noting (thanks to @quickbeam123) that "fewer instructions" could mean:
🤷 |
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Good to keep in mind, but these were all problems Vampire solves. |
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Solves using Otter, Discount, or LRS?
A
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<#1009 (comment)>
Good to keep in mind, but these were all problems Vampire solves.
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DISCOUNT. |
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Let's wait for updates on the cluster access for more extensive testing
(not only in this instance).
Cheers, Andrei
…On Tue, 6 Oct 2026 at 10:03, Michael Rawson ***@***.***> wrote:
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DISCOUNT.
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Release builds now use link-time optimisation when the toolchain supports it, checked with CMake's
check_ipo_supported.Results
master(af03e15) built with-DCMAKE_BUILD_TYPE=Release, with and without this change, measured with-sa discount -p off -t 30on Apple clang, arm64: