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

[via cfe-commits]

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@@ -149,6 +151,14 @@ void x86::getX86TargetFeatures(const Driver &D, const llvm::Triple &Triple,
   }
 
   const llvm::Triple::ArchType ArchType = Triple.getArch();
+  bool HasEGPR = false;
+
+  if (ArchType == llvm::Triple::x86_64) {
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zhouguangyuan0718 wrote:

Done, could you help review the comments again?

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