[llvm] [X86][RA] Add two address hints for compressible NDD instructions. (PR #98603)

[Shengchen Kan via llvm-commits]

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@@ -630,6 +630,12 @@ class TargetRegisterInfo : public MCRegisterInfo {
     return false;
   }
 
+  /// Returns true if TargetRegisterClass is a general purpose register.
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KanRobert wrote:

a class/subclass of general purpose register.

https://github.com/llvm/llvm-project/pull/98603