[clang] [llvm] [X86] support reserve r8~r15 on X86_64 (PR #180242)

[via llvm-commits]

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@@ -807,6 +807,13 @@ class LLVM_LIBRARY_VISIBILITY X86_64TargetInfo : public X86TargetInfo {
       return true;
     }
 
+    StringRef Reg64 = RegName;
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zhouguangyuan0718 wrote:

Done, could you help review the comments again?

https://github.com/llvm/llvm-project/pull/180242