Update LLVM submodule

[nikic]

This merges in the current upstream release/15.x branch.

Fixes #102402.

[rust-highfive]

r? @cuviper

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[rust-highfive]

⚠️ Warning ⚠️

• These commits modify submodules.

[cuviper]

@bors r+ rollup=never

[bors]

📌 Commit efbaa11 has been approved by cuviper

It is now in the queue for this repository.

[bors]

⌛ Testing commit efbaa11 with merge 8ce3204...

[bors]

☀️ Test successful - checks-actions
Approved by: cuviper
Pushing 8ce3204 to master...

[rust-timer]

Finished benchmarking commit (8ce3204): 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.

	mean1	range	count2
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-1.4%	[-1.6%, -1.2%]	6
All ❌✅ (primary)	-	-	0

Max RSS (memory usage)

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean1	range	count2
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	5.5%	[5.5%, 5.5%]	1
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-3.7%	[-4.2%, -3.2%]	2
All ❌✅ (primary)	-	-	0

Cycles

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean1	range	count2
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	3.3%	[2.3%, 4.3%]	2
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-	-	0

Footnotes

1. the arithmetic mean of the percent change ↩ ↩² ↩³

2. number of relevant changes ↩ ↩² ↩³