check if CI-LLVM is enabled before testing it

[onur-ozkan]

Blocker for #137034

[rustbot]

r? @jieyouxu

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They will have a look at your PR within the next two weeks and either review your PR or reassign to another reviewer.

Use r? to explicitly pick a reviewer

[jieyouxu]

Thanks

[jieyouxu]

@bors r+ rollup

[bors]

📌 Commit b2d6a7f has been approved by jieyouxu

It is now in the queue for this repository.

[ChrisDenton]

@bors p=1 this is not too urgent but it is blocker for the release process

[jieyouxu]

@bors p=5 (to make it easier for release process)

[bors]

⌛ Testing commit b2d6a7f with merge 608e228...

[bors]

☀️ Test successful - checks-actions
Approved by: jieyouxu
Pushing 608e228 to master...

[rust-timer]

Finished benchmarking commit (608e228): comparison URL.

Overall result: ✅ improvements - no action needed

@rustbot label: -perf-regression

Instruction count

This is the most reliable metric that we have; it was used to determine the overall result at the top of this comment. However, even this metric can sometimes exhibit noise.

	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)

Results (primary 0.9%)

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.

	mean	range	count
Regressions ❌ (primary)	0.9%	[0.9%, 0.9%]	1
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	0.9%	[0.9%, 0.9%]	1

Cycles

Results (secondary 2.3%)

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.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	2.3%	[2.3%, 2.3%]	1
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-	-	0

Binary size

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

Bootstrap: 789.995s -> 789.44s (-0.07%)
Artifact size: 347.21 MiB -> 347.24 MiB (0.01%)