bool IsPotentiallyPHITranslatable() const;
/// PHITranslateValue - PHI translate the current address up the CFG from
- /// CurBB to Pred, updating our state the reflect any needed changes. This
- /// returns true on failure and sets Addr to null.
- bool PHITranslateValue(BasicBlock *CurBB, BasicBlock *PredBB);
+ /// CurBB to Pred, updating our state to reflect any needed changes. If the
+ /// dominator tree DT is non-null, the translated value must dominate
+ /// PredBB. This returns true on failure and sets Addr to null.
+ bool PHITranslateValue(BasicBlock *CurBB, BasicBlock *PredBB,
+ const DominatorTree *DT);
/// PHITranslateWithInsertion - PHI translate this value into the specified
/// predecessor block, inserting a computation of the value if it is
Value *PHITranslateWithInsertion(BasicBlock *CurBB, BasicBlock *PredBB,
const DominatorTree &DT,
SmallVectorImpl<Instruction*> &NewInsts);
-private:
- Value *PHITranslateSubExpr(Value *V, BasicBlock *CurBB, BasicBlock *PredBB);
+ void dump() const;
- /// GetAvailablePHITranslatedSubExpr - Return the value computed by
- /// PHITranslateSubExpr if it dominates PredBB, otherwise return null.
- Value *GetAvailablePHITranslatedSubExpr(Value *V,
- BasicBlock *CurBB, BasicBlock *PredBB,
- const DominatorTree &DT) const;
+ /// Verify - Check internal consistency of this data structure. If the
+ /// structure is valid, it returns true. If invalid, it prints errors and
+ /// returns false.
+ bool Verify() const;
+private:
+ Value *PHITranslateSubExpr(Value *V, BasicBlock *CurBB, BasicBlock *PredBB,
+ const DominatorTree *DT);
/// InsertPHITranslatedSubExpr - Insert a computation of the PHI translated
/// version of 'V' for the edge PredBB->CurBB into the end of the PredBB
Value *InsertPHITranslatedSubExpr(Value *InVal, BasicBlock *CurBB,
BasicBlock *PredBB, const DominatorTree &DT,
SmallVectorImpl<Instruction*> &NewInsts);
+
+ /// AddAsInput - If the specified value is an instruction, add it as an input.
+ Value *AddAsInput(Value *V) {
+ // If V is an instruction, it is now an input.
+ if (Instruction *VI = dyn_cast<Instruction>(V))
+ InstInputs.push_back(VI);
+ return V;
+ }
+
};
} // end namespace llvm