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Add null checks and const-ify these accessors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36270 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -322,13 +322,16 @@ public:
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/// Return the immediate dominator of A.
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/// Return the immediate dominator of A.
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BasicBlock *getIDom(BasicBlock *A) {
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BasicBlock *getIDom(BasicBlock *A) const {
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if (!A) return 0;
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ETNode *NodeA = getNode(A);
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ETNode *NodeA = getNode(A);
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const ETNode *idom = NodeA->getFather();
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const ETNode *idom = NodeA->getFather();
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return idom ? idom->getData<BasicBlock>() : 0;
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return idom ? idom->getData<BasicBlock>() : 0;
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}
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}
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void getChildren(BasicBlock *A, std::vector<BasicBlock*>& children) {
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void getChildren(BasicBlock *A, std::vector<BasicBlock*>& children) const {
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if (!A) return;
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ETNode *NodeA = getNode(A);
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ETNode *NodeA = getNode(A);
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const ETNode* son = NodeA->getSon();
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const ETNode* son = NodeA->getSon();
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