Index: clang/lib/Basic/Targets/X86.h
--- clang/lib/Basic/Targets/X86.h.orig
+++ clang/lib/Basic/Targets/X86.h
@@ -138,6 +138,7 @@ class LLVM_LIBRARY_VISIBILITY X86TargetInfo : public T
   bool HasMOVDIR64B = false;
   bool HasPTWRITE = false;
   bool HasINVPCID = false;
+  bool HasSaveArgs = false;
   bool HasENQCMD = false;
   bool HasAMXFP16 = false;
   bool HasCMPCCXADD = false;
