[llvm] [TableGen] Fix concatenation of subreg and artificial subregs (PR #114391)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,407 @@
+// RUN: llvm-tblgen -gen-register-info -register-info-debug -I %p/../../include %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=CHECK
+include "llvm/Target/Target.td"
+
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arsenm wrote:

Comment the test purpose 

https://github.com/llvm/llvm-project/pull/114391