[DRAFT] Update the minimum external LLVM to 20 #145071
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nikic
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Aug 8, 2025
| IMAGE: x86_64-gnu-llvm-19 | ||
| DOCKER_SCRIPT: x86_64-gnu-llvm3.sh | ||
| <<: *job-linux-4c | ||
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Not directly related to this PR, but does this mean we're actually running different jobs in PR CI and auto CI? PR CI runs some on aarch64, but here everything uses x86_64.
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Yes, #141576 only changed the PR side. (cc @marcoieni)
There was also a zulip discussion here.
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r=me once it's time. |
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With this change, we'll have stable support for LLVM 20 and 21.
For reference, the previous increase to LLVM 19 was #139275.
cc @rust-lang/wg-llvm
r? nikic
NOTE: Fedora 41 is on LLVM 19 and will be EOL in November, which means Rust 1.91 will be its last possible update. Therefore, I'd like to wait until nightly begins Rust 1.92 to merge this.