diff options
Diffstat (limited to 'llvm/include/llvm/Support/GenericDomTree.h')
| -rw-r--r-- | llvm/include/llvm/Support/GenericDomTree.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/include/llvm/Support/GenericDomTree.h b/llvm/include/llvm/Support/GenericDomTree.h index 63678bb98bb..a790d754d20 100644 --- a/llvm/include/llvm/Support/GenericDomTree.h +++ b/llvm/include/llvm/Support/GenericDomTree.h @@ -371,8 +371,9 @@ public: void releaseMemory() { reset(); } /// getNode - return the (Post)DominatorTree node for the specified basic - /// block. This is the same as using operator[] on this class. - /// + /// block. This is the same as using operator[] on this class. The result + /// may (but is not required to) be null for a forward (backwards) + /// statically unreachable block. DomTreeNodeBase<NodeT> *getNode(NodeT *BB) const { auto I = DomTreeNodes.find(BB); if (I != DomTreeNodes.end()) @@ -380,6 +381,7 @@ public: return nullptr; } + /// See getNode. DomTreeNodeBase<NodeT> *operator[](NodeT *BB) const { return getNode(BB); } /// getRootNode - This returns the entry node for the CFG of the function. If |
