[clang] [llvm] [AArch64][llvm] Improve codegen for svldr_vnum_za/svstr_vnum_za (PR #175785)

[Jonathan Thackray via llvm-commits]

jthackray wrote:

* **#175785** <a href="https://app.graphite.com/github/pr/llvm/llvm-project/175785?utm_source=stack-comment-icon" target="_blank"><img src="https://static.graphite.dev/graphite-32x32-black.png" alt="Graphite" width="10px" height="10px"/></a> 👈 <a href="https://app.graphite.com/github/pr/llvm/llvm-project/175785?utm_source=stack-comment-view-in-graphite" target="_blank">(View in Graphite)</a>
* `main`


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https://github.com/llvm/llvm-project/pull/175785