[llvm] [SEH] Add test to track EHa register liveness verification (PR #76921)

[Phoebe Wang via llvm-commits]

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@@ -0,0 +1,69 @@
+; XFAIL: *
+; RUN: llc --verify-machineinstrs < %s | FileCheck %s
+source_filename = "test.cpp"
+target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-pc-windows-msvc19.12.0"
+
+$"?test at Test@@Plugin@@Host@@@Z" = comdat any
+
+declare dso_local i32 @__CxxFrameHandler3(...)
+
+; Function Attrs: nounwind memory(none)
+declare dso_local void @llvm.seh.scope.begin() #1
+
+; Function Attrs: nobuiltin allocsize(0)
+declare dso_local noundef nonnull ptr @"??2 at Test@Z"(i64 noundef) #1
+
+; Function Attrs: nounwind memory(none)
+declare dso_local void @llvm.seh.scope.end() #0
+
+; Function Attrs: nobuiltin nounwind
+declare dso_local void @"??3 at YAXPEAX@Z"(ptr noundef) #2
+
+; Function Attrs: mustprogress uwtable
+define weak_odr dso_local noundef ptr @"?test at Test@@Plugin@@Host@@@Z"(ptr noundef nonnull align 8 dereferenceable(48) %this, ptr noundef %host) unnamed_addr #3 comdat align 2 personality ptr @__CxxFrameHandler3 {
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phoebewang wrote:

ditto.

https://github.com/llvm/llvm-project/pull/76921