5004 struct VarArgSystemZHelper : public VarArgHelper {  struct
5005   static const unsigned SystemZGpOffset = 16;
5006   static const unsigned SystemZGpEndOffset = 56;
5007   static const unsigned SystemZFpOffset = 128;
5008   static const unsigned SystemZFpEndOffset = 160;
5009   static const unsigned SystemZMaxVrArgs = 8;
5010   static const unsigned SystemZRegSaveAreaSize = 160;
5011   static const unsigned SystemZOverflowOffset = 160;
5012   static const unsigned SystemZVAListTagSize = 32;
5013   static const unsigned SystemZOverflowArgAreaPtrOffset = 16;
5014   static const unsigned SystemZRegSaveAreaPtrOffset = 24;
5016   Function &F;
5017   MemorySanitizer &MS;
5018   MemorySanitizerVisitor &MSV;
5019   Value *VAArgTLSCopy = nullptr;
5020   Value *VAArgTLSOriginCopy = nullptr;
5021   Value *VAArgOverflowSize = nullptr;
5023   SmallVector<CallInst *, 16> VAStartInstrumentationList;
5025   enum class ArgKind {
5033   enum class ShadowExtension { None, Zero, Sign };
5035   VarArgSystemZHelper(Function &F, MemorySanitizer &MS,  in VarArgSystemZHelper()  argument
5039   ArgKind classifyArgument(Type *T, bool IsSoftFloatABI) {  in classifyArgument()
5057   ShadowExtension getShadowExtension(const CallBase &CB, unsigned ArgNo) {  in getShadowExtension()
5076   void visitCallBase(CallBase &CB, IRBuilder<> &IRB) override {  in visitCallBase()
5203   Value *getShadowAddrForVAArgument(IRBuilder<> &IRB, unsigned ArgOffset) {  in getShadowAddrForVAArgument()
5208   Value *getOriginPtrForVAArgument(IRBuilder<> &IRB, int ArgOffset) {  in getOriginPtrForVAArgument()
5215   void unpoisonVAListTagForInst(IntrinsicInst &I) {  in unpoisonVAListTagForInst()
5227   void visitVAStartInst(VAStartInst &I) override {  in visitVAStartInst()
5232   void visitVACopyInst(VACopyInst &I) override { unpoisonVAListTagForInst(I); }  in visitVACopyInst()
5234   void copyRegSaveArea(IRBuilder<> &IRB, Value *VAListTag) {  in copyRegSaveArea()
5255   void copyOverflowArea(IRBuilder<> &IRB, Value *VAListTag) {  in copyOverflowArea()
5281   void finalizeInstrumentation() override {  in finalizeInstrumentation()