41   RValue EmitVAArg(CodeGenFunction &CGF, Address VAListAddr, QualType Ty,
246 RValue SystemZABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAListAddr,  in EmitVAArg()  argument
264   llvm::Type *ArgTy = CGF.ConvertTypeForMem(Ty);  in EmitVAArg()
292   llvm::Type *IndexTy = CGF.Int64Ty;  in EmitVAArg()
301         CGF.Builder.CreateStructGEP(VAListAddr, 2, "overflow_arg_area_ptr");  in EmitVAArg()
303         Address(CGF.Builder.CreateLoad(OverflowArgAreaPtr, "overflow_arg_area"),  in EmitVAArg()
304                 CGF.Int8Ty, TyInfo.Align);  in EmitVAArg()
308     llvm::Value *NewOverflowArgArea = CGF.Builder.CreateGEP(  in EmitVAArg()
309         OverflowArgArea.getElementType(), OverflowArgArea.emitRawPointer(CGF),  in EmitVAArg()
311     CGF.Builder.CreateStore(NewOverflowArgArea, OverflowArgAreaPtr);  in EmitVAArg()
313     return CGF.EmitLoadOfAnyValue(CGF.MakeAddrLValue(MemAddr, Ty), Slot);  in EmitVAArg()
333       CGF.Builder.CreateStructGEP(VAListAddr, RegCountField, "reg_count_ptr");  in EmitVAArg()
334   llvm::Value *RegCount = CGF.Builder.CreateLoad(RegCountPtr, "reg_count");  in EmitVAArg()
336   llvm::Value *InRegs = CGF.Builder.CreateICmpULT(RegCount, MaxRegsV,  in EmitVAArg()
339   llvm::BasicBlock *InRegBlock = CGF.createBasicBlock("vaarg.in_reg");  in EmitVAArg()
340   llvm::BasicBlock *InMemBlock = CGF.createBasicBlock("vaarg.in_mem");  in EmitVAArg()
341   llvm::BasicBlock *ContBlock = CGF.createBasicBlock("vaarg.end");  in EmitVAArg()
342   CGF.Builder.CreateCondBr(InRegs, InRegBlock, InMemBlock);  in EmitVAArg()
345   CGF.EmitBlock(InRegBlock);  in EmitVAArg()
349     CGF.Builder.CreateMul(RegCount, PaddedSizeV, "scaled_reg_count");  in EmitVAArg()
354     CGF.Builder.CreateAdd(ScaledRegCount, RegBase, "reg_offset");  in EmitVAArg()
356       CGF.Builder.CreateStructGEP(VAListAddr, 3, "reg_save_area_ptr");  in EmitVAArg()
358       CGF.Builder.CreateLoad(RegSaveAreaPtr, "reg_save_area");  in EmitVAArg()
360       CGF.Builder.CreateGEP(CGF.Int8Ty, RegSaveArea, RegOffset, "raw_reg_addr"),  in EmitVAArg()
361       CGF.Int8Ty, PaddedSize);  in EmitVAArg()
367     CGF.Builder.CreateAdd(RegCount, One, "reg_count");  in EmitVAArg()
368   CGF.Builder.CreateStore(NewRegCount, RegCountPtr);  in EmitVAArg()
369   CGF.EmitBranch(ContBlock);  in EmitVAArg()
372   CGF.EmitBlock(InMemBlock);  in EmitVAArg()
376       CGF.Builder.CreateStructGEP(VAListAddr, 2, "overflow_arg_area_ptr");  in EmitVAArg()
378       Address(CGF.Builder.CreateLoad(OverflowArgAreaPtr, "overflow_arg_area"),  in EmitVAArg()
379               CGF.Int8Ty, PaddedSize);  in EmitVAArg()
381       CGF.Builder.CreateConstByteGEP(OverflowArgArea, Padding, "raw_mem_addr");  in EmitVAArg()
385   llvm::Value *NewOverflowArgArea = CGF.Builder.CreateGEP(  in EmitVAArg()
386       OverflowArgArea.getElementType(), OverflowArgArea.emitRawPointer(CGF),  in EmitVAArg()
388   CGF.Builder.CreateStore(NewOverflowArgArea, OverflowArgAreaPtr);  in EmitVAArg()
389   CGF.EmitBranch(ContBlock);  in EmitVAArg()
392   CGF.EmitBlock(ContBlock);  in EmitVAArg()
393   Address ResAddr = emitMergePHI(CGF, RegAddr, InRegBlock, MemAddr, InMemBlock,  in EmitVAArg()
397     ResAddr = Address(CGF.Builder.CreateLoad(ResAddr, "indirect_arg"), ArgTy,  in EmitVAArg()
400   return CGF.EmitLoadOfAnyValue(CGF.MakeAddrLValue(ResAddr, Ty), Slot);  in EmitVAArg()