Update to LLVM 21 #143684

nikic · 2025-07-09T12:41:26Z

Depends on:

r? @ghost

rustbot · 2025-07-09T12:41:31Z

These commits modify compiler targets.
(See the Target Tier Policy.)

nikic · 2025-07-09T12:46:44Z

@bors2 try @rust-timer queue

rust-timer · 2025-07-09T12:46:46Z

Awaiting bors try build completion.

@rustbot label: +S-waiting-on-perf

Update to LLVM 21 r? `@ghost`

rust-bors · 2025-07-09T12:46:48Z

⌛ Trying commit ebb63b9 with merge c3e645b…

To cancel the try build, run the command @bors2 try cancel.

rust-bors · 2025-07-09T14:22:01Z

💔 Test failed

CI ❌

nikic · 2025-07-09T14:30:42Z

Noooo, a crash while profiling with the bolt instrumentation.

    process didn't exit successfully: `/tmp/tmp-multistage/opt-artifacts/rustc-perf/target/debug/rustc-fake --crate-name regex_automata --edition=2021 /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/regex-automata-0.4.9/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no --cfg 'feature="alloc"' --cfg 'feature="dfa-onepass"' --cfg 'feature="dfa-search"' --cfg 'feature="hybrid"' --cfg 'feature="meta"' --cfg 'feature="nfa"' --cfg 'feature="nfa-backtrack"' --cfg 'feature="nfa-pikevm"' --cfg 'feature="nfa-thompson"' --cfg 'feature="perf"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="perf-literal-multisubstring"' --cfg 'feature="perf-literal-substring"' --cfg 'feature="std"' --cfg 'feature="syntax"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' --cfg 'feature="unicode-word-boundary"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "default", "dfa", "dfa-build", "dfa-onepass", "dfa-search", "hybrid", "internal-instrument", "internal-instrument-pikevm", "logging", "meta", "nfa", "nfa-backtrack", "nfa-pikevm", "nfa-thompson", "perf", "perf-inline", "perf-literal", "perf-literal-multisubstring", "perf-literal-substring", "std", "syntax", "unicode", "unicode-age", "unicode-bool", "unicode-case", "unicode-gencat", "unicode-perl", "unicode-script", "unicode-segment", "unicode-word-boundary"))' -C metadata=29004f3d2c23a6dc -C extra-filename=-acaa9aabb4aa769d --out-dir /tmp/.tmpSoAMdr/target/release/deps -C linker=clang -C strip=debuginfo -L dependency=/tmp/.tmpSoAMdr/target/release/deps --extern aho_corasick=/tmp/.tmpSoAMdr/target/release/deps/libaho_corasick-f3f82c9a60cf08f9.rmeta --extern memchr=/tmp/.tmpSoAMdr/target/release/deps/libmemchr-e5f42c55eae6f759.rmeta --extern regex_syntax=/tmp/.tmpSoAMdr/target/release/deps/libregex_syntax-7bce46b340cd2bfa.rmeta --cap-lints allow` (signal: 11, SIGSEGV: invalid memory reference)

Kobzol · 2025-07-09T15:31:03Z

Noooo, a crash while profiling with the bolt instrumentation.

    process didn't exit successfully: `/tmp/tmp-multistage/opt-artifacts/rustc-perf/target/debug/rustc-fake --crate-name regex_automata --edition=2021 /cargo/registry/src/index.crates.io-1949cf8c6b5b557f/regex-automata-0.4.9/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no --cfg 'feature="alloc"' --cfg 'feature="dfa-onepass"' --cfg 'feature="dfa-search"' --cfg 'feature="hybrid"' --cfg 'feature="meta"' --cfg 'feature="nfa"' --cfg 'feature="nfa-backtrack"' --cfg 'feature="nfa-pikevm"' --cfg 'feature="nfa-thompson"' --cfg 'feature="perf"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="perf-literal-multisubstring"' --cfg 'feature="perf-literal-substring"' --cfg 'feature="std"' --cfg 'feature="syntax"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' --cfg 'feature="unicode-word-boundary"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "default", "dfa", "dfa-build", "dfa-onepass", "dfa-search", "hybrid", "internal-instrument", "internal-instrument-pikevm", "logging", "meta", "nfa", "nfa-backtrack", "nfa-pikevm", "nfa-thompson", "perf", "perf-inline", "perf-literal", "perf-literal-multisubstring", "perf-literal-substring", "std", "syntax", "unicode", "unicode-age", "unicode-bool", "unicode-case", "unicode-gencat", "unicode-perl", "unicode-script", "unicode-segment", "unicode-word-boundary"))' -C metadata=29004f3d2c23a6dc -C extra-filename=-acaa9aabb4aa769d --out-dir /tmp/.tmpSoAMdr/target/release/deps -C linker=clang -C strip=debuginfo -L dependency=/tmp/.tmpSoAMdr/target/release/deps --extern aho_corasick=/tmp/.tmpSoAMdr/target/release/deps/libaho_corasick-f3f82c9a60cf08f9.rmeta --extern memchr=/tmp/.tmpSoAMdr/target/release/deps/libmemchr-e5f42c55eae6f759.rmeta --extern regex_syntax=/tmp/.tmpSoAMdr/target/release/deps/libregex_syntax-7bce46b340cd2bfa.rmeta --cap-lints allow` (signal: 11, SIGSEGV: invalid memory reference)

Oh no, the day has finally come 😆

nikic · 2025-07-09T16:44:32Z

llvm/llvm-project#147781 for pr-check-1 assertion failure.

bors · 2025-07-10T05:52:36Z

☔ The latest upstream changes (presumably #143703) made this pull request unmergeable. Please resolve the merge conflicts.

nikic · 2025-07-10T10:33:49Z

llvm/llvm-project#147935 for armhf-gnu test failure.

nikic · 2025-07-10T12:56:26Z

llvm/llvm-project#139443 for musl build failure.

nikic · 2025-07-11T10:54:39Z

llvm/llvm-project#148207 for x86_64-gnu-nopt assertion failure.

rustbot · 2025-07-14T08:32:07Z

⚠️ Warning ⚠️

Some commits in this PR modify submodules.

nikic · 2025-07-14T12:17:33Z

llvm/llvm-project#148607 for the brand new x86_64-gnu-miri build failure...

bors · 2025-07-14T13:25:21Z

☔ The latest upstream changes (presumably #143873) made this pull request unmergeable. Please resolve the merge conflicts.

nikic · 2025-07-15T16:44:46Z

@bors2 try

I was unable to reproduce the bolt issue locally. Fingers crossed that I just hit a bad commit or something.

Update to LLVM 21 Depends on: * [x] llvm/llvm-project#147781 * [x] llvm/llvm-project#147935 * [x] llvm/llvm-project#139443 * [x] llvm/llvm-project#148207 * [x] llvm/llvm-project#148607 r? `@ghost`

rust-bors · 2025-07-15T16:44:51Z

⌛ Trying commit b0b9a3c with merge cd80bb6…

To cancel the try build, run the command @bors2 try cancel.

rust-bors · 2025-07-15T18:18:54Z

💔 Test failed

CI ❌

nikic · 2025-07-15T19:24:46Z

Hm, it still fails in the same way. I wonder why this doesn't reproduce when running the image locally.

nikic · 2025-07-16T08:03:14Z

@bors2 try jobs=aarch64-gnu,aarch64-gnu-debug,dist-aarch64-linux

Update to LLVM 21 Depends on: * [x] llvm/llvm-project#147781 * [x] llvm/llvm-project#147935 * [x] llvm/llvm-project#139443 * [x] llvm/llvm-project#148207 * [x] llvm/llvm-project#148607 r? `@ghost` try-job: aarch64-gnu try-job: aarch64-gnu-debug try-job: dist-aarch64-linux

rust-bors · 2025-07-16T08:03:18Z

⌛ Trying commit b0b9a3c with merge c499bde…

To cancel the try build, run the command @bors2 try cancel.

rust-bors · 2025-07-16T09:23:52Z

💔 Test failed

CI ❌

nikic · 2025-07-16T09:39:12Z

llvm/llvm-project#149046 for another blake3 linking issue.

The presence of `@add-core-stubs` indicates that this was already intended.

nikic · 2025-07-16T09:48:45Z

@bors2 try jobs=aarch64-gnu,aarch64-gnu-debug,dist-aarch64-linux

rust-bors · 2025-07-16T09:48:49Z

⌛ Trying commit 5beee45 with merge 153487e…

To cancel the try build, run the command @bors2 try cancel.

Update to LLVM 21 Depends on: * [x] llvm/llvm-project#147781 * [x] llvm/llvm-project#147935 * [x] llvm/llvm-project#139443 * [x] llvm/llvm-project#148207 * [x] llvm/llvm-project#148607 * [ ] llvm/llvm-project#149046 r? `@ghost` try-job: aarch64-gnu try-job: aarch64-gnu-debug try-job: dist-aarch64-linux

rust-bors · 2025-07-16T12:34:56Z

☀️ Try build successful (CI)
Build commit: 153487e (153487e9d3bf76defda03edc13bc589a52d7005f, parent: 231257f583c6e782da2e642ad007fca4e76779d6)

rust-timer · 2025-07-16T12:34:59Z

Queued 153487e with parent 231257f, future comparison URL.
There is currently 1 preceding artifact in the queue.
It will probably take at least ~1.3 hours until the benchmark run finishes.

nikic · 2025-07-16T12:40:37Z

I hope perf will gracefully handle a try build for the wrong arch...

@bors2 try jobs=dist-x86_64-apple,dist-apple-various,x86_64-apple-1,x86_64-apple-2,dist-aarch64-apple,aarch64-apple

rust-bors · 2025-07-16T12:40:42Z

⌛ Trying commit 5beee45 with merge f4ce95e…

To cancel the try build, run the command @bors2 try cancel.

Update to LLVM 21 Depends on: * [x] llvm/llvm-project#147781 * [x] llvm/llvm-project#147935 * [x] llvm/llvm-project#139443 * [x] llvm/llvm-project#148207 * [x] llvm/llvm-project#148607 * [ ] llvm/llvm-project#149046 r? `@ghost` try-job: dist-x86_64-apple try-job: dist-apple-various try-job: x86_64-apple-1 try-job: x86_64-apple-2 try-job: dist-aarch64-apple try-job: aarch64-apple

nikic · 2025-07-16T13:23:57Z

llvm/llvm-project#149097 for wasm assertion failure.

lqd · 2025-07-16T14:46:21Z

I hope perf will gracefully handle a try build for the wrong arch...

It doesn't really, but I've told Jakub since he has access to the DB and he'll remove it from the queue soon.

Kobzol · 2025-07-16T16:26:20Z

~~This entire city must be~~ Purged.

rust-bors · 2025-07-16T17:06:18Z

☀️ Try build successful (CI)
Build commit: f4ce95e (f4ce95eedb14d3c068f7e3f04c61dd62257688a1, parent: f21fbac535ab2c3bc50db20547f4d48477357103)

nikic · 2025-07-16T17:12:04Z

@bors2 try jobs=x86_64-mingw-1,x86_64-mingw-2,dist-i686-mingw,dist-x86_64-mingw,aarch64-msvc-1,aarch64-msvc-2,dist-aarch64-msvc

rust-bors · 2025-07-16T17:12:09Z

⌛ Trying commit 5beee45 with merge ea49c99…

To cancel the try build, run the command @bors2 try cancel.

Update to LLVM 21 Depends on: * [x] llvm/llvm-project#147781 * [x] llvm/llvm-project#147935 * [x] llvm/llvm-project#139443 * [x] llvm/llvm-project#148207 * [x] llvm/llvm-project#148607 * [ ] llvm/llvm-project#149046 * [ ] llvm/llvm-project#149097 r? `@ghost` try-job: x86_64-mingw-1 try-job: x86_64-mingw-2 try-job: dist-i686-mingw try-job: dist-x86_64-mingw try-job: aarch64-msvc-1 try-job: aarch64-msvc-2 try-job: dist-aarch64-msvc

rust-bors · 2025-07-16T21:36:08Z

☀️ Try build successful (CI)
Build commit: ea49c99 (ea49c99ab4204207c1555639677f941e3db7d9f4, parent: 1c6de215099bbe33668de762f9591187f6c25eef)

rust-bors bot added a commit that referenced this pull request Jul 9, 2025

Auto merge of #143684 - nikic:llvm-21, r=<try>

c3e645b

Update to LLVM 21 r? `@ghost`

rustbot added the S-waiting-on-perf Status: Waiting on a perf run to be completed. label Jul 9, 2025

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nikic force-pushed the llvm-21 branch from ebb63b9 to 0d6d6b0 Compare July 9, 2025 13:33

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nikic force-pushed the llvm-21 branch from 0d6d6b0 to 4ce4c54 Compare July 10, 2025 14:42

nikic force-pushed the llvm-21 branch from f913490 to 94ca2b6 Compare July 14, 2025 08:37

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nikic force-pushed the llvm-21 branch from 94ca2b6 to b0b9a3c Compare July 15, 2025 08:14

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nikic added 4 commits July 16, 2025 11:42

Update to LLVM 21

7572fa7

Update AMDGPU data layout

d5c1edb

Pass wasm exception model to TargetOptions

357b363

Make emit-arity-indicator.rs a no_core test

5beee45

The presence of `@add-core-stubs` indicates that this was already intended.

nikic force-pushed the llvm-21 branch from b0b9a3c to 5beee45 Compare July 16, 2025 09:43

Update to LLVM 21 #143684

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Update to LLVM 21 #143684

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