Add rust-dev component to support rustc development #76332
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Is this a follow-up PR you haven't yet made? Giant thank you for working on this though ❤️ |
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Let's try r? @pietroalbini @bors try -- should've fixed the CI error in latest push |
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⌛ Trying commit f61d7bebb37ecbe0a63d734f8e1e8d2c39c8c01d with merge a4fb0b111d9f14089158e58138a74f4ca75e3314... |
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☀️ Try build successful - checks-actions, checks-azure |
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☀️ Try build successful - checks-actions, checks-azure |
This currently includes libLLVM, llvm-config, and FileCheck, but will perhaps expand to more tooling overtime. It should be considered entirely unstable and may change at any time.
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@pietroalbini Update to rust-dev, should be good to go -- try build exposed a single case where I missed the llvm-tools name but that should be fixed now. |
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@bors r+ Thanks! |
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📌 Commit aa4554f has been approved by |
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⌛ Testing commit aa4554f with merge 82c83c40f35894063fdc7d0917426234d6a350ed... |
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💔 Test failed - checks-actions |
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Spurious: @bors retry cc @rust-lang/crates-io , this seems to have been happening a lot lately. |
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☀️ Test successful - checks-actions, checks-azure |
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…hton Download LLVM from CI to bootstrap (linux-only to start) This follows rust-lang#76332, adding support for using CI-built LLVM rather than building it locally. This should essentially "just work," but is left off by default in this PR. While we can support downloading LLVM for multiple host triples, this currently only downloads it for the build triple. That said, it should be possible to expand this relatively easily should multiple host triples be desired. Most people shouldn't be adjusting host/target triples though, so this should cover most use cases. Currently this downloads LLVM for the last bors-authored commit in the `git log`. This is a bit suboptimal -- we want the last bors-authored commit that touched the llvm-project submodule in basically all cases. But for now this just adds an extra ~20 MB download when rebasing atop latest master. Once we have a submodule bump landing after rust-lang#76332, we can fix this behavior to reduce downloads further.
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Download LLVM from CI to bootstrap (linux-only to start) This follows rust-lang#76332, adding support for using CI-built LLVM rather than building it locally. This should essentially "just work," but is left off by default in this PR. While we can support downloading LLVM for multiple host triples, this currently only downloads it for the build triple. That said, it should be possible to expand this relatively easily should multiple host triples be desired. Most people shouldn't be adjusting host/target triples though, so this should cover most use cases. Currently this downloads LLVM for the last bors-authored commit in the `git log`. This is a bit suboptimal -- we want the last bors-authored commit that touched the llvm-project submodule in basically all cases. But for now this just adds an extra ~20 MB download when rebasing atop latest master. Once we have a submodule bump landing after rust-lang#76332, we can fix this behavior to reduce downloads further.
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This is preparatory work for permitting rustc developers to use CI-built LLVM rather than building it locally. Unlike distro-built LLVM, CI built LLVM is essentially guaranteed to behave perfectly for local development -- it is fully up to date, and carries all necessary patches.
This is a separate PR from #76349 because it needs to land before that one, since we want a master build with the full CI LLVM to be available for easier testing.