57   IsWin64 = Is64Bit && TT.isOSWindows();  in X86RegisterInfo()
235   if (IsWin64 || (F.getCallingConv() == CallingConv::Win64))  in getGPRsForTailCall()
320     if (HasAVX512 && IsWin64)  in getCalleeSavedRegs()
324     if (HasAVX && IsWin64)  in getCalleeSavedRegs()
328     if (!HasAVX && !IsWin64 && Is64Bit)  in getCalleeSavedRegs()
336       if (IsWin64) {  in getCalleeSavedRegs()
362     return IsWin64 ? CSR_Win64_SwiftTail_SaveList : CSR_64_SwiftTail_SaveList;  in getCalleeSavedRegs()
393       return IsWin64 ? CSR_Win64_SwiftError_SaveList  in getCalleeSavedRegs()
396     if (IsWin64)  in getCalleeSavedRegs()
442     if (HasAVX512 && IsWin64)  in getCallPreservedMask()
446     if (HasAVX && IsWin64)  in getCallPreservedMask()
450     if (!HasAVX && !IsWin64 && Is64Bit)  in getCallPreservedMask()
458       if (IsWin64) {  in getCallPreservedMask()
482     return IsWin64 ? CSR_Win64_SwiftTail_RegMask : CSR_64_SwiftTail_RegMask;  in getCallPreservedMask()
514       return IsWin64 ? CSR_Win64_SwiftError_RegMask : CSR_64_SwiftError_RegMask;  in getCallPreservedMask()
516     return IsWin64 ? CSR_Win64_RegMask : CSR_64_RegMask;  in getCallPreservedMask()