diff options
Diffstat (limited to 'include/llvm/Analysis/PHITransAddr.h')
| -rw-r--r-- | include/llvm/Analysis/PHITransAddr.h | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/include/llvm/Analysis/PHITransAddr.h b/include/llvm/Analysis/PHITransAddr.h index 033efba3e7..b612316057 100644 --- a/include/llvm/Analysis/PHITransAddr.h +++ b/include/llvm/Analysis/PHITransAddr.h @@ -66,11 +66,9 @@ public: bool IsPotentiallyPHITranslatable() const; /// PHITranslateValue - PHI translate the current address up the CFG from - /// 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); + /// 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); /// PHITranslateWithInsertion - PHI translate this value into the specified /// predecessor block, inserting a computation of the value if it is @@ -90,8 +88,14 @@ public: /// returns false. bool Verify() const; private: - Value *PHITranslateSubExpr(Value *V, BasicBlock *CurBB, BasicBlock *PredBB, - const DominatorTree *DT); + Value *PHITranslateSubExpr(Value *V, BasicBlock *CurBB, BasicBlock *PredBB); + + + /// 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; /// InsertPHITranslatedSubExpr - Insert a computation of the PHI translated /// version of 'V' for the edge PredBB->CurBB into the end of the PredBB |