143     unsigned StackTop;          // The current top of the FP stack.  member
164       for (unsigned i = 0; i != StackTop; ++i) {  in dumpStack()
181       return Slot < StackTop && Stack[Slot] == RegNo;  in isLive()
186       if (STi >= StackTop)  in getStackEntry()
188       return Stack[StackTop-1-STi];  in getStackEntry()
194       return StackTop - 1 - getSlot(RegNo) + X86::ST0;  in getSTReg()
200       if (StackTop >= 8)  in pushReg()
202       Stack[StackTop] = Reg;  in pushReg()
203       RegMap[Reg] = StackTop++;  in pushReg()
206     bool isAtTop(unsigned RegNo) const { return getSlot(RegNo) == StackTop-1; }  in isAtTop()
218       if (RegMap[RegOnTop] >= StackTop)  in moveToTop()
220       std::swap(Stack[RegMap[RegOnTop]], Stack[StackTop-1]);  in moveToTop()
319   StackTop = 0;  in runOnMachineFunction()
461   StackTop = 0;  in setupBlockStack()
523     Bundle.FixCount = StackTop;  in finishBlockStack()
524     for (unsigned i = 0; i < StackTop; ++i)  in finishBlockStack()
795   if (StackTop == 0)  in popStackAfter()
797   RegMap[Stack[--StackTop]] = ~0;     // Update state  in popStackAfter()
832   unsigned TopReg   = Stack[StackTop-1];  in freeStackSlotBefore()
836   Stack[--StackTop] = ~0;  in freeStackSlotBefore()
847   for (unsigned i = 0; i < StackTop; ++i) {  in adjustLiveRegs()
872     while (StackTop) {  in adjustLiveRegs()
901   assert(StackTop == countPopulation(Mask) && "Live count mismatch");  in adjustLiveRegs()
1016     if (StackTop == 0)  in handleOneArgFP()
1018     --StackTop;  in handleOneArgFP()
1048     if (StackTop == 0)  in handleOneArgFPRW()
1050     --StackTop;  in handleOneArgFPRW()
1232   assert(UpdatedSlot < StackTop && Dest < 7);  in handleTwoArgFP()
1500     StackTop -= NumSTPopped;  in handleSpecialFP()
1543     --StackTop;  in handleSpecialFP()
1595       assert(StackTop == 1 && FirstFPRegOp == getStackEntry(0) &&  in handleSpecialFP()
1601       StackTop = 0;  in handleSpecialFP()
1608     if (StackTop == 1) {  in handleSpecialFP()
1620     assert(StackTop == 2 && "Must have two values live!");  in handleSpecialFP()
1633     StackTop = 0;  in handleSpecialFP()