[llvm] [RISCV][GISEL] Legalize G_VAARG through expansion. (PR #73065)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,82 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+# RUN: llc -mtriple=riscv32 -run-pass=legalizer %s -o - | FileCheck %s
+
+# On RISC-V, the MinStackArgumentAlignment is 1 and the ABI Alignment for p0 is
+# greater than 1, so we will always generate code to adjust for this alignment.
+
+--- |
+  define void @va_arg_i32(ptr %0, ptr %1, ptr %2, ptr %3, ptr %4, ptr %5, ptr %6, ptr %7, ...) {
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arsenm wrote:

Don't need the IR section, just drop the name from the stack section 

https://github.com/llvm/llvm-project/pull/73065