[clang] [CIR][AArch64] Add lowering for `svlen` builtins (1/2) (PR #172346)

[Andy Kaylor via cfe-commits]

Andrzej =?utf-8?q?Warzy=C5=84ski?= <andrzej.warzynski at gmail.com>,
Andrzej =?utf-8?q?Warzy=C5=84ski?= <andrzej.warzynski at gmail.com>,
Andrzej =?utf-8?q?Warzy=C5=84ski?= <andrzej.warzynski at gmail.com>,Andrzej
 Warzynski <andrzej.warzynski at arm.com>,Andrzej Warzynski
 <andrzej.warzynski at arm.com>,Andrzej Warzynski <andrzej.warzynski at arm.com>
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In-Reply-To: <llvm.org/llvm/llvm-project/pull/172346 at github.com>


https://github.com/andykaylor approved this pull request.

This looks great. I have just a couple of nits.

https://github.com/llvm/llvm-project/pull/172346