llvm 16 finally reconizes some additional vec in-place conversions as noops

[the8472]

closes #79308

r? @nikic

[nikic]

@bors r+ rollup=iffy (codegen test)

[bors]

📌 Commit 7a70647 has been approved by nikic

It is now in the queue for this repository.

[bors]

⌛ Testing commit 7a70647 with merge 1f1f9e319f28cb76299a870c97f7e21cca2b5fad...

[bors]

💔 Test failed - checks-actions

[rust-log-analyzer]

The job armhf-gnu failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

- hello, world!


The actual run.stdout differed from the expected run.stdout.
Actual run.stdout saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/runtime/stdout-during-shutdown/stdout-during-shutdown.run.stdout
normalized run.stderr:
thread 'main' panicked at 'client.read_exact(&mut header) failed with Connection reset by peer (os error 104)', src/tools/remote-test-client/src/main.rs:310:9



The actual run.stderr differed from the expected run.stderr.
The actual run.stderr differed from the expected run.stderr.
Actual run.stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/runtime/stdout-during-shutdown/stdout-during-shutdown.run.stderr
error: 2 errors occurred comparing run output.
status: exit status: 101
status: exit status: 101
command: RUST_TEST_THREADS="16" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-tools-bin/remote-test-client" "run" "0" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/runtime/stdout-during-shutdown/a"
uploaded "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/runtime/stdout-during-shutdown/a", waiting for result
------------------------------------------
--- stderr -------------------------------
thread 'main' panicked at 'client.read_exact(&mut header) failed with Connection reset by peer (os error 104)', src/tools/remote-test-client/src/main.rs:310:9

[albertlarsan68]

Seems supurious
@bors retry

[bors]

⌛ Testing commit 7a70647 with merge 7c96e40...

[bors]

☀️ Test successful - checks-actions
Approved by: nikic
Pushing 7c96e40 to master...

[rust-timer]

Finished benchmarking commit (7c96e40): comparison URL.

Overall result: ❌ regressions - 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)	0.4%	[0.4%, 0.4%]	2
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
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.

	mean	range	count
Regressions ❌ (primary)	2.8%	[2.3%, 3.4%]	2
Regressions ❌ (secondary)	1.1%	[1.1%, 1.1%]	2
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	2.8%	[2.3%, 3.4%]	2

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.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	1.7%	[1.7%, 1.7%]	1
Improvements ✅ (primary)	-1.5%	[-1.5%, -1.5%]	1
Improvements ✅ (secondary)	-3.1%	[-3.1%, -3.1%]	1
All ❌✅ (primary)	-1.5%	[-1.5%, -1.5%]	1