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Add an accessor to make ETForest more useful.

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llvm-svn: 36246
This commit is contained in:
Owen Anderson 2007-04-18 04:38:39 +00:00
parent ea3c945817
commit 7553394275
1 changed files with 7 additions and 0 deletions
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7
include/llvm/Analysis/Dominators.h
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@ -321,6 +321,13 @@ public:
return Common->getData<BasicBlock>();
}
/// Return the immediate dominator of A.
BasicBlock *getIDom(BasicBlock *A) {
ETNode *NodeA = getNode(A);
const ETNode *idom = NodeA->getFather();
return idom ? idom->getData<BasicBlock>() : 0;
}
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
AU.addRequired<DominatorTree>();