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

[Jay Foad via llvm-commits]

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@@ -42,11 +42,38 @@ class VirtRegMap;
 class LiveIntervals;
 class LiveInterval;
 
+/// TargetSuperClassIterator enumerates all super-registers of RegClass.
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jayfoad wrote:

"super-classes" surely?

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