[llvm] [RISCV][GISel] Reverse the operands the buildStore created in legalizeVAStart. (PR #73989)

[Michael Maitland via llvm-commits]

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@@ -0,0 +1,45 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+# RUN: llc -mtriple=riscv64 -run-pass=legalizer %s -o - | FileCheck --check-prefix=RV64 %s
+
+--- |
+  source_filename = "test.ll"
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michaelmaitland wrote:

drop source_filename, datalayout, triple?

https://github.com/llvm/llvm-project/pull/73989