[llvm] CodeGen: Eliminate dynamic relocations in the register superclass tables. (PR #119122)

[Sergei Barannikov via llvm-commits]

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@@ -46,7 +46,7 @@ class TargetRegisterClass {
 public:
   using iterator = const MCPhysReg *;
   using const_iterator = const MCPhysReg *;
-  using sc_iterator = const TargetRegisterClass* const *;
+  using sc_iterator = const unsigned *;
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s-barannikov wrote:

Ideally this would be a full-blown class so as to not expose implementation details to users of `getSuperClasses` (which should return `iterator_range`).
See e.g. `MCRegisterInfo::superregs`.


https://github.com/llvm/llvm-project/pull/119122