Update stdarch submodule

[tmiasko]

Changes from stdarch:

• Fix links in documentation of cmpxchg16b
• Use load intrinsic and loop for intrinsic-test programs. Add --release flag back to intrinsic-test programs.
• Properly fix vext intrinsic tests
• Replace some calls to pointer::offset with add and sub
• Allow internal use of stdsimd from detect_feature
• fix target name in contributing.md
• Tweak constant for ARM vext instruction tests
• Use llvm.ppc.altivec.lvx intrinsic for vec_ld
• Adding doc links for arm neon intrinsics
• Adding doc links for arm crypto and aes intrinsics
• Remove instruction tests for __mmask* intrinsics
• Update ubuntu 21.10 docker containers to 22.04
• Adding documentation links for arm crc32 intrinsics
• Remove restrictions on compare-exchange memory ordering.
• Fix a typo in the document.
• Allow mapping a runtime feature to a set of target_features
• Update atomic intrinsics
• Fully qualify recursive macro calls
• Ensure the neon vector aggregates like float32x4x4_t are #[repr(C)]
• Remove useless conditional compilation
• Fix ARM vbsl* NEON intrinsics

r? @Amanieu

[rust-highfive]

⚠️ Warning ⚠️

• These commits modify submodules.

[Amanieu]

@bors r+ rollup=never

[bors]

📌 Commit 6d62f5cd2c8864d452553c569fd8efbc0dc97e86 has been approved by Amanieu

It is now in the queue for this repository.

[tmiasko]

@bors r- (unresolved links in documentation).

[Amanieu]

@bors r+

[bors]

📌 Commit 5f4d23d has been approved by Amanieu

It is now in the queue for this repository.

[bors]

⌛ Testing commit 5f4d23d with merge 7480389...

[bors]

☀️ Test successful - checks-actions
Approved by: Amanieu
Pushing 7480389 to master...

[rust-timer]

Finished benchmarking commit (7480389): 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)	0.3%	[0.3%, 0.3%]	1
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-1.1%	[-1.5%, -0.7%]	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)	2.5%	[2.5%, 2.5%]	1
Regressions ❌ (secondary)	2.2%	[2.1%, 2.2%]	2
Improvements ✅ (primary)	-2.2%	[-2.2%, -2.2%]	1
Improvements ✅ (secondary)	-3.1%	[-3.8%, -2.5%]	2
All ❌✅ (primary)	0.1%	[-2.2%, 2.5%]	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.

	mean1	range	count2
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-2.1%	[-2.1%, -2.1%]	1
Improvements ✅ (secondary)	-3.0%	[-3.9%, -2.2%]	4
All ❌✅ (primary)	-2.1%	[-2.1%, -2.1%]	1

Footnotes

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

2. number of relevant changes ↩ ↩² ↩³