[clang] [lld] [llvm] [X86][APX] Suppress EGPR/NDD instructions for relocations (PR #136660)

[Shengchen Kan via llvm-commits]

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@@ -1257,6 +1259,26 @@ inline bool isX86_64ExtendedReg(MCRegister Reg) {
   return false;
 }
 
+inline const TargetRegisterClass *
+constrainRegClassToNonRex2(const TargetRegisterClass *RC) {
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KanRobert wrote:

It seems it's not appropriate place. X86BaseInfo is used to put common info for MC part.  The new added headers are strange.

Suggest declare it in `X86RegisterInfo.h` and define it in `X86RegisterInfo.cpp`

https://github.com/llvm/llvm-project/pull/136660