[llvm] [TableGen] Added submulticlass typechecking to template arg values. (PR #112904)

[via llvm-commits]

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@@ -0,0 +1,21 @@
+// RUN: llvm-tblgen %s | FileCheck %s
+// XFAIL: vg_leak
+// CHECK:      def X0 { // C
+// CHECK-NEXT:   bit x = 1;
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jofrn wrote:

This is `bit x = 0;` in the before case, yet `!cast<bits<8>>(-1)` is identical to `Val`.

https://github.com/llvm/llvm-project/pull/112904