59   struct FPS : public MachineFunctionPass {  struct
60     static char ID;
61     FPS() : MachineFunctionPass(ID) {  in FPS()  argument
69     void getAnalysisUsage(AnalysisUsage &AU) const override {  in getAnalysisUsage()
79     const char *getPassName() const override { return "X86 FP Stackifier"; }  in getPassName()
82     const TargetInstrInfo *TII; // Machine instruction info.
95     struct LiveBundle {
115     SmallVector<LiveBundle, 8> LiveBundles;
118     EdgeBundles *Bundles;
121     static unsigned calcLiveInMask(MachineBasicBlock *MBB) {  in calcLiveInMask()
134     MachineBasicBlock *MBB;     // Current basic block
140     unsigned Stack[8];          // FP<n> Registers in each stack slot...
141     unsigned StackTop;          // The current top of the FP stack.
143     enum {
151     unsigned RegMap[NumFPRegs];
160     void dumpStack() const {  in dumpStack()
171     unsigned getSlot(unsigned RegNo) const {  in getSlot()
177     bool isLive(unsigned RegNo) const {  in isLive()
183     unsigned getStackEntry(unsigned STi) const {  in getStackEntry()
191     unsigned getSTReg(unsigned RegNo) const {  in getSTReg()
196     void pushReg(unsigned Reg) {  in pushReg()
204     bool isAtTop(unsigned RegNo) const { return getSlot(RegNo) == StackTop-1; }  in isAtTop()
205     void moveToTop(unsigned RegNo, MachineBasicBlock::iterator I) {  in moveToTop()
225     void duplicateToTop(unsigned RegNo, unsigned AsReg, MachineInstr *I) {  in duplicateToTop()
269     static bool isFPCopy(MachineInstr *MI) {  in isFPCopy()