MachineInstr *MI;
unsigned LoopDepth;
CopyRec(MachineInstr *mi, unsigned depth)
- : MI(mi), LoopDepth(depth) {};
+ : MI(mi), LoopDepth(depth) {}
};
class SimpleRegisterCoalescing : public MachineFunctionPass,
const TargetInstrInfo* tii_;
LiveIntervals *li_;
const MachineLoopInfo* loopInfo;
+ AliasAnalysis *AA;
BitVector allocatableRegs_;
DenseMap<const TargetRegisterClass*, BitVector> allocatableRCRegs_;
bool coalesceFunction(MachineFunction &mf, RegallocQuery &) {
// This runs as an independent pass, so don't do anything.
return false;
- };
+ }
/// print - Implement the dump method.
virtual void print(raw_ostream &O, const Module* = 0) const;
/// TrimLiveIntervalToLastUse - If there is a last use in the same basic
/// block as the copy instruction, trim the ive interval to the last use
/// and return true.
- bool TrimLiveIntervalToLastUse(MachineInstrIndex CopyIdx,
+ bool TrimLiveIntervalToLastUse(SlotIndex CopyIdx,
MachineBasicBlock *CopyMBB,
LiveInterval &li, const LiveRange *LR);
bool CanJoinInsertSubRegToPhysReg(unsigned DstReg, unsigned SrcReg,
unsigned SubIdx, unsigned &RealDstReg);
+ /// ValueLiveAt - Return true if the LiveRange pointed to by the given
+ /// iterator, or any subsequent range with the same value number,
+ /// is live at the given point.
+ bool ValueLiveAt(LiveInterval::iterator LRItr, LiveInterval::iterator LREnd,
+ SlotIndex defPoint) const;
+
/// RangeIsDefinedByCopyFromReg - Return true if the specified live range of
/// the specified live interval is defined by a copy from the specified
/// register.
/// lastRegisterUse - Returns the last use of the specific register between
/// cycles Start and End or NULL if there are no uses.
- MachineOperand *lastRegisterUse(MachineInstrIndex Start,
- MachineInstrIndex End, unsigned Reg,
- MachineInstrIndex &LastUseIdx) const;
-
- /// CalculateSpillWeights - Compute spill weights for all virtual register
- /// live intervals.
- void CalculateSpillWeights();
+ MachineOperand *lastRegisterUse(SlotIndex Start, SlotIndex End,
+ unsigned Reg, SlotIndex &LastUseIdx) const;
void printRegName(unsigned reg) const;
};