-int
-X86RegisterInfo::getFrameIndexOffset(const MachineFunction &MF, int FI) const {
- const TargetFrameInfo *TFI = MF.getTarget().getFrameInfo();
- const MachineFrameInfo *MFI = MF.getFrameInfo();
- int Offset = MFI->getObjectOffset(FI) - TFI->getOffsetOfLocalArea();
- uint64_t StackSize = MFI->getStackSize();
-
- if (needsStackRealignment(MF)) {
- if (FI < 0) {
- // Skip the saved EBP.
- Offset += SlotSize;
- } else {
- unsigned Align = MFI->getObjectAlignment(FI);
- assert((-(Offset + StackSize)) % Align == 0);
- Align = 0;
- return Offset + StackSize;
- }
- // FIXME: Support tail calls
- } else {
- if (!TFI->hasFP(MF))
- return Offset + StackSize;
-
- // Skip the saved EBP.
- Offset += SlotSize;
-
- // Skip the RETADDR move area
- const X86MachineFunctionInfo *X86FI = MF.getInfo<X86MachineFunctionInfo>();
- int TailCallReturnAddrDelta = X86FI->getTCReturnAddrDelta();
- if (TailCallReturnAddrDelta < 0)
- Offset -= TailCallReturnAddrDelta;
- }
-
- return Offset;
-}
-