[llvm] [AArch64][GlobalISel] Implement selectVaStartAAPCS (PR #106979)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,325 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+# RUN: llc -O0 -mtriple=aarch64-unknown-linux -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=CHECK
+
+--- |
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arsenm wrote:

Don't need IR section, and there's too much going on here

https://github.com/llvm/llvm-project/pull/106979