Update LLVM to 1deeee3

[DianQK]

Fixes #123772.

Diff: rust-lang/llvm-project@af8f9eb...5399a24
Diff (From 18.1.2): rust-lang/llvm-project@0af6c73...5399a24

r? @cuviper

[rustbot]

⚠️ Warning ⚠️

• These commits modify submodules.

[cuviper]

@bors r+ rollup=never

[bors]

📌 Commit 374b782 has been approved by cuviper

It is now in the queue for this repository.

[matthiaskrgr]

bors rollup=neeeev3r

[DianQK]

Oh no, version 18.1.4 has already been released just now. The new changes don't seem important: llvm/llvm-project@1deeee3...e6c3289.

Hmm, it includes another MIPS commit. I think it's easier to consider a backport while keeping the current state.

[bors]

⌛ Testing commit 374b782 with merge 9f432d7...

[DianQK]

Replace #124044 with this PR.

@rustbot label beta-nominated T-compiler

[bors]

☀️ Test successful - checks-actions
Approved by: cuviper
Pushing 9f432d7 to master...

[rust-timer]

Finished benchmarking commit (9f432d7): comparison URL.

Overall result: ✅ improvements - no action needed

@rustbot label: -perf-regression

Instruction count

This is a highly reliable metric that was used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-0.3%	[-0.3%, -0.3%]	1
All ❌✅ (primary)	-	-	0

Max RSS (memory usage)

This benchmark run did not return any relevant results for this metric.

Cycles

This benchmark run did not return any relevant results for this metric.

Binary size

This benchmark run did not return any relevant results for this metric.

Bootstrap: 677.135s -> 676.169s (-0.14%)
Artifact size: 316.09 MiB -> 316.07 MiB (-0.01%)

[apiraino]

Beta backport declined as per compiler team on Zulip.

We're not sure this backport aligns with our backport policies (which btw are a bit unclear) and because maybe it doesn't feel that urgent (besides fixing a regression we introduced in the latest LLVM upgrade on a tier 3 platform). The overlap with LLVM upgrade to 1.8.1.4. add also a bit of uncertainity.

@rustbot label -beta-nominated