lib/CodeGen/LiveStacks.cpp

1 //===-- LiveStacks.cpp - Live Stack Slot Analysis -------------------------===//
28                 "Live Stack Slot Analysis", false, false)
31                 "Live Stack Slot Analysis", false, false)
57 LiveStacks::getOrCreateInterval(int Slot, const TargetRegisterClass *RC) {
58   assert(Slot >= 0 && "Spill slot indice must be >= 0");
59   SS2IntervalMap::iterator I = S2IMap.find(Slot);
63                 std::piecewise_construct, std::forward_as_tuple(Slot),
64                 std::forward_as_tuple(Register::index2StackSlot(Slot), 0.0F))
66     S2RCMap.insert(std::make_pair(Slot, RC));
69     const TargetRegisterClass *OldRC = S2RCMap[Slot];
70     S2RCMap[Slot] = TRI->getCommonSubClass(OldRC, RC);
81     int Slot = I->first;
82     const TargetRegisterClass *RC = getIntervalRegClass(Slot);