141     unsigned StackTop;          // The current top of the FP stack.  member
162       for (unsigned i = 0; i != StackTop; ++i) {  in dumpStack()
179       return Slot < StackTop && Stack[Slot] == RegNo;  in isLive()
184       if (STi >= StackTop)  in getStackEntry()
186       return Stack[StackTop-1-STi];  in getStackEntry()
192       return StackTop - 1 - getSlot(RegNo) + X86::ST0;  in getSTReg()
198       if (StackTop >= 8)  in pushReg()
200       Stack[StackTop] = Reg;  in pushReg()
201       RegMap[Reg] = StackTop++;  in pushReg()
204     bool isAtTop(unsigned RegNo) const { return getSlot(RegNo) == StackTop-1; }  in isAtTop()
216       if (RegMap[RegOnTop] >= StackTop)  in moveToTop()
218       std::swap(Stack[RegMap[RegOnTop]], Stack[StackTop-1]);  in moveToTop()
318   StackTop = 0;  in runOnMachineFunction()
459   StackTop = 0;  in setupBlockStack()
521     Bundle.FixCount = StackTop;  in finishBlockStack()
522     for (unsigned i = 0; i < StackTop; ++i)  in finishBlockStack()
785   if (StackTop == 0)  in popStackAfter()
787   RegMap[Stack[--StackTop]] = ~0;     // Update state  in popStackAfter()
822   unsigned TopReg   = Stack[StackTop-1];  in freeStackSlotBefore()
826   Stack[--StackTop] = ~0;  in freeStackSlotBefore()
837   for (unsigned i = 0; i < StackTop; ++i) {  in adjustLiveRegs()
862     while (StackTop) {  in adjustLiveRegs()
891   assert(StackTop == countPopulation(Mask) && "Live count mismatch");  in adjustLiveRegs()
1006     if (StackTop == 0)  in handleOneArgFP()
1008     --StackTop;  in handleOneArgFP()
1038     if (StackTop == 0)  in handleOneArgFPRW()
1040     --StackTop;  in handleOneArgFPRW()
1221   assert(UpdatedSlot < StackTop && Dest < 7);  in handleTwoArgFP()
1489     StackTop -= NumSTPopped;  in handleSpecialFP()
1559       assert(StackTop == 1 && FirstFPRegOp == getStackEntry(0) &&  in handleSpecialFP()
1565       StackTop = 0;  in handleSpecialFP()
1572     if (StackTop == 1) {  in handleSpecialFP()
1584     assert(StackTop == 2 && "Must have two values live!");  in handleSpecialFP()
1597     StackTop = 0;  in handleSpecialFP()