Give SplitBlockAndInsertIfThen the ability to update a domtree.

[oota-llvm.git] / include / llvm / Transforms / Utils / BasicBlockUtils.h

diff --git a/include/llvm/Transforms/Utils/BasicBlockUtils.h b/include/llvm/Transforms/Utils/BasicBlockUtils.h
index 7309f6960a774d3cfccc834e1ec83c67d27eaac7..bcafda657c2b34eb9f3b81053fb6a068789194d4 100644 (file)
--- a/include/llvm/Transforms/Utils/BasicBlockUtils.h
+++ b/include/llvm/Transforms/Utils/BasicBlockUtils.h
@@ -23,6 +23,7 @@
 namespace llvm {
 
 class AliasAnalysis;
+class DominatorTree;
 class Instruction;
 class MDNode;
 class Pass;
@@ -202,9 +203,12 @@ ReturnInst *FoldReturnIntoUncondBranch(ReturnInst *RI, BasicBlock *BB,
 /// If Unreachable is true, then ThenBlock ends with
 /// UnreachableInst, otherwise it branches to Tail.
 /// Returns the NewBasicBlock's terminator.
+///
+/// Updates DT if given.
 TerminatorInst *SplitBlockAndInsertIfThen(Value *Cond, Instruction *SplitBefore,
                                           bool Unreachable,
-                                          MDNode *BranchWeights = nullptr);
+                                          MDNode *BranchWeights = nullptr,
+                                          DominatorTree *DT = nullptr);
 
 /// SplitBlockAndInsertIfThenElse is similar to SplitBlockAndInsertIfThen,
 /// but also creates the ElseBlock.