43   /// Strategies for lowering a DynAlloca.
44   enum Lowering { TouchAndSub, Sub, Probe };  enum in __anondc6c05ef0111::X86DynAllocaExpander
46   /// Deterministic-order map from DynAlloca instruction to desired lowering.
47   typedef MapVector<MachineInstr*, Lowering> LoweringMap;
49   /// Compute which lowering to use for each DynAlloca instruction.
52   /// Get the appropriate lowering based on current offset and amount.
53   Lowering getLowering(int64_t CurrentOffset, int64_t AllocaAmount);
56   void lower(MachineInstr* MI, Lowering L);
96 X86DynAllocaExpander::Lowering
158         Lowering L = getLowering(Offset, Amount);  in computeLowerings()
196 void X86DynAllocaExpander::lower(MachineInstr *MI, Lowering L) {  in lower()
250       // The probe lowering expects the amount in RAX/EAX.  in lower()