diff options
Diffstat (limited to 'llvm/lib/VMCore')
| -rw-r--r-- | llvm/lib/VMCore/Dominators.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/VMCore/Dominators.cpp b/llvm/lib/VMCore/Dominators.cpp index 3206ba2e51a..45a2cebb630 100644 --- a/llvm/lib/VMCore/Dominators.cpp +++ b/llvm/lib/VMCore/Dominators.cpp @@ -873,6 +873,12 @@ bool ETForestBase::dominates(Instruction *A, Instruction *B) { } } +/// isReachableFromEntry - Return true if A is dominated by the entry +/// block of the function containing it. +const bool ETForestBase::isReachableFromEntry(BasicBlock* A) { + return dominates(&A->getParent()->getEntryBlock(), A); +} + ETNode *ETForest::getNodeForBlock(BasicBlock *BB) { ETNode *&BBNode = Nodes[BB]; if (BBNode) return BBNode; |
