Update llvm-project #98567

Patryk27 · 2022-06-27T06:25:34Z

Closes #98167 🙂

rust-highfive · 2022-06-27T06:25:37Z

r? @cuviper

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rust-highfive · 2022-06-27T06:25:38Z

⚠️ Warning ⚠️

These commits modify submodules.

slanterns · 2022-06-27T06:37:11Z

duplicate with #98285 ?

Patryk27 · 2022-06-27T06:39:11Z

Kinda, that one doesn't contain the recent commit from yesterday that fixes the AVR bug I've linked 😅 (since it uses llvm-project from two days ago)

I guess I'll just rebase my PR after #98285 gets merged.

bors · 2022-06-27T09:09:19Z

☔ The latest upstream changes (presumably #98285) made this pull request unmergeable. Please resolve the merge conflicts.

Patryk27 · 2022-06-27T09:17:02Z

Ready!

cuviper · 2022-06-27T17:13:32Z

@bors r+

bors · 2022-06-27T17:13:33Z

📌 Commit dafe7a17847dfb287430155ab0c6be84da0b556b has been approved by cuviper

nikic · 2022-07-05T14:13:10Z

As this hasn't been merged yet, would you mind updating this PR to the latest commit? I've pushed two more backports.

Patryk27 · 2022-07-05T14:16:28Z

Sure, I’ll take a look in two hours or so 🙂

Patryk27 · 2022-07-05T16:00:03Z

kk, done!

nikic · 2022-07-05T16:05:08Z

Thanks!

@bors r+ rollup=never

bors · 2022-07-05T16:05:10Z

📌 Commit d61e4a4 has been approved by nikic

bors · 2022-07-06T12:29:43Z

⌛ Testing commit d61e4a4 with merge 0aef720...

bors · 2022-07-06T15:10:31Z

☀️ Test successful - checks-actions
Approved by: nikic
Pushing 0aef720 to master...

rust-timer · 2022-07-06T16:51:17Z

Finished benchmarking commit (0aef720): comparison url.

Instruction count

Primary benchmarks: 😿 relevant regressions found
Secondary benchmarks: 😿 relevant regressions found

	mean¹	max	count²
Regressions 😿 (primary)	0.7%	0.9%	8
Regressions 😿 (secondary)	1.5%	2.4%	10
Improvements 🎉 (primary)	N/A	N/A	0
Improvements 🎉 (secondary)	-1.1%	-1.1%	1
All 😿🎉 (primary)	0.7%	0.9%	8

Max RSS (memory usage)

Results

Primary benchmarks: 🎉 relevant improvement found
Secondary benchmarks: 😿 relevant regression found

	mean¹	max	count²
Regressions 😿 (primary)	N/A	N/A	0
Regressions 😿 (secondary)	2.1%	2.1%	1
Improvements 🎉 (primary)	-1.0%	-1.0%	1
Improvements 🎉 (secondary)	N/A	N/A	0
All 😿🎉 (primary)	-1.0%	-1.0%	1

Cycles

Results

Primary benchmarks: no relevant changes found
Secondary benchmarks: 😿 relevant regressions found

	mean¹	max	count²
Regressions 😿 (primary)	N/A	N/A	0
Regressions 😿 (secondary)	2.9%	4.0%	9
Improvements 🎉 (primary)	N/A	N/A	0
Improvements 🎉 (secondary)	N/A	N/A	0
All 😿🎉 (primary)	N/A	N/A	0

If you disagree with this performance assessment, please file an issue in rust-lang/rustc-perf.

Next Steps: If you can justify the regressions found in this perf run, please indicate this with @rustbot label: +perf-regression-triaged along with sufficient written justification. If you cannot justify the regressions please open an issue or create a new PR that fixes the regressions, add a comment linking to the newly created issue or PR, and then add the perf-regression-triaged label to this PR.

@rustbot label: +perf-regression

the arithmetic mean of the percent change ↩ ↩² ↩³
number of relevant changes ↩ ↩² ↩³

nikic · 2022-07-06T16:54:20Z

Perf result seems to be noise, it seems to be the opposite of the results on the previous commit: https://perf.rust-lang.org/compare.html?start=f342bea9d19f14616c6559312552e6d0ee529cfd&end=5b8cf49c51833ee5d27ae2e8e179337dbb9f14d7&stat=instructions:u

nikic · 2022-07-06T16:59:39Z

Beta nominating as fix for the P-critical miscompile in #98568. The update also includes a fix for an AVR-only miscompile (#98167), as well as an assertion failure (#98076).

Submodule diff: rust-lang/llvm-project@d1ddc34...8b6b501

workingjubilee · 2022-07-06T18:40:04Z

Thank you, @Patryk27 and @nikic!

apiraino · 2022-07-07T14:45:36Z

Beta backport approved as per compiler team on Zulip

@rustbot label +beta-accepted

Mark-Simulacrum · 2022-07-09T21:15:05Z

@nikic is it a problem if we backport by rolling forward to the latest commit here on beta? (rust-lang/llvm-project@c9e2e89...8b6b501)

Otherwise can create a targeted backport with a helper branch, but want to make sure there's no accidental mistakes missing a dependency on a previous commit here.

nikic · 2022-07-09T21:27:06Z

@Mark-Simulacrum I think we need a separate backport branch here, because the LLVM fork has been rebased in the meantime, and I'm not confident that it will build on beta (specifically FreeBSD). And no, I don't think there are any relevant dependency commits.

Mark-Simulacrum · 2022-07-09T22:20:40Z

OK, sounds good. I'll look into doing that.

This cherry picks: * c9676870a8f378940ec446c4184254f361feabe6 * f14a034634ac7ddc314008e39d62af6ceae0166a * 3317cfea1b72c0861c9e4e9f5eba5713fd19e7f7 * 8b6b5014fdad3a750f7242a6bfdcad83619498d4

Mark-Simulacrum · 2022-07-09T22:26:13Z

Included in #99098, branch rustc/14.0-2022-07-09.

…ulacrum [beta] backport rollup * Return a FxIndexSet in is_late_bound query. rust-lang#98959 * rustdoc: filter '_ lifetimes from ty::PolyTraitRef rust-lang#98727 * don't succeed evaluate_obligation query if new opaque types were registered rust-lang#98614 * Update llvm-project rust-lang#98567 There's a few more as-yet-unapproved/unmerged PRs that'll land later, but creating a partial rollup for now so that we can include at least some PRs in the first crater run. r? `@Mark-Simulacrum`

Mark-Simulacrum · 2022-07-12T12:48:52Z

Dropping regression label, agree that the results are likely noise. See #98925 (comment) for some graphs.

Newest rustc contains an important bugfix to AVR's code generator (rust-lang/rust#98567). Ref: Rahix/avr-hal-template#9

rust-highfive assigned cuviper Jun 27, 2022

rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Jun 27, 2022

Patryk27 force-pushed the update-llvm branch from 2b8554b to dafe7a1 Compare June 27, 2022 09:16

bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jun 27, 2022

Update llvm-project

d61e4a4

Patryk27 force-pushed the update-llvm branch from dafe7a1 to d61e4a4 Compare July 5, 2022 15:59

RalfJung mentioned this pull request Jul 6, 2022

Rollup of 5 pull requests #98970

Merged

bors added the merged-by-bors This PR was explicitly merged by bors. label Jul 6, 2022

bors merged commit 0aef720 into rust-lang:master Jul 6, 2022

rustbot added this to the 1.64.0 milestone Jul 6, 2022

Patryk27 deleted the update-llvm branch July 6, 2022 15:18

rustbot added the perf-regression Performance regression. label Jul 6, 2022

nikic added the beta-nominated Nominated for backporting to the compiler in the beta channel. label Jul 6, 2022

apiraino added the T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. label Jul 7, 2022

rustbot added the beta-accepted Accepted for backporting to the compiler in the beta channel. label Jul 7, 2022

Mark-Simulacrum removed the beta-nominated Nominated for backporting to the compiler in the beta channel. label Jul 9, 2022

Mark-Simulacrum modified the milestones: 1.64.0, 1.63.0 Jul 9, 2022

Mark-Simulacrum mentioned this pull request Jul 9, 2022

[beta] backport rollup #99098

Merged

Mark-Simulacrum removed the perf-regression Performance regression. label Jul 12, 2022

pnkfelix mentioned this pull request Jul 28, 2022

Wrong optimization #98568

Closed

Rahix added a commit to Rahix/avr-hal that referenced this pull request Jul 28, 2022

Upgrade toolchain

f6c8b31

Newest rustc contains an important bugfix to AVR's code generator (rust-lang/rust#98567). Ref: Rahix/avr-hal-template#9

Update llvm-project #98567

Update llvm-project #98567

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Instruction count

Max RSS (memory usage)

Cycles

Footnotes

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Patryk27 commented Jun 27, 2022 •

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