[llvm] AArch64: support extended spills in SEH on WoS (PR #166849)

[Eli Friedman via llvm-commits]

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@@ -0,0 +1,22 @@
+; RUN: llc -mtriple aarch64-unknown-windows-msvc -filetype asm -o - %s | FileCheck %s
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efriedma-quic wrote:

> update_llc_test_checks.py results with the subsequent change to adjust the alignment of the stp so that this is properly encoded.

Seems fine.

https://github.com/llvm/llvm-project/pull/166849