diff options
Diffstat (limited to 'include/llvm/Transforms/Utils')
| -rw-r--r-- | include/llvm/Transforms/Utils/BasicBlockUtils.h | 9 | ||||
| -rw-r--r-- | include/llvm/Transforms/Utils/Local.h | 8 |
2 files changed, 16 insertions, 1 deletions
diff --git a/include/llvm/Transforms/Utils/BasicBlockUtils.h b/include/llvm/Transforms/Utils/BasicBlockUtils.h index b5478cb669..65cafe2ec2 100644 --- a/include/llvm/Transforms/Utils/BasicBlockUtils.h +++ b/include/llvm/Transforms/Utils/BasicBlockUtils.h @@ -205,6 +205,15 @@ ReturnInst *FoldReturnIntoUncondBranch(ReturnInst *RI, BasicBlock *BB, TerminatorInst *SplitBlockAndInsertIfThen(Instruction *Cmp, bool Unreachable, MDNode *BranchWeights = 0); +/// +/// GetIfCondition - Check whether BB is the merge point of a if-region. +/// If so, return the boolean condition that determines which entry into +/// BB will be taken. Also, return by references the block that will be +/// entered from if the condition is true, and the block that will be +/// entered if the condition is false. + +Value *GetIfCondition(BasicBlock *BB, BasicBlock *&IfTrue, + BasicBlock *&IfFalse); } // End llvm namespace #endif diff --git a/include/llvm/Transforms/Utils/Local.h b/include/llvm/Transforms/Utils/Local.h index 5e60286ba7..65755d076e 100644 --- a/include/llvm/Transforms/Utils/Local.h +++ b/include/llvm/Transforms/Utils/Local.h @@ -137,7 +137,13 @@ bool EliminateDuplicatePHINodes(BasicBlock *BB); /// the basic block that was pointed to. /// bool SimplifyCFG(BasicBlock *BB, const TargetTransformInfo &TTI, - const DataLayout *TD = 0, AliasAnalysis *AA = 0); + const DataLayout *TD = 0); + +/// FlatternCFG - This function is used to flatten a CFG. For +/// example, it uses parallel-and and parallel-or mode to collapse +// if-conditions and merge if-regions with identical statements. +/// +bool FlattenCFG(BasicBlock *BB, AliasAnalysis *AA = 0); /// FoldBranchToCommonDest - If this basic block is ONLY a setcc and a branch, /// and if a predecessor branches to us and one of our successors, fold the |