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Add null checks and const-ify these accessors.

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llvm-svn: 36270
This commit is contained in:
Owen Anderson 2007-04-20 05:44:16 +00:00
parent aac115a8e5
commit 7a5136d8c5
1 changed files with 5 additions and 2 deletions
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7
llvm/include/llvm/Analysis/Dominators.h
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@ -322,13 +322,16 @@ public:
}
/// Return the immediate dominator of A.
BasicBlock *getIDom(BasicBlock *A) {
BasicBlock *getIDom(BasicBlock *A) const {
if (!A) return 0;
ETNode *NodeA = getNode(A);
const ETNode *idom = NodeA->getFather();
return idom ? idom->getData<BasicBlock>() : 0;
}
void getChildren(BasicBlock *A, std::vector<BasicBlock*>& children) {
void getChildren(BasicBlock *A, std::vector<BasicBlock*>& children) const {
if (!A) return;
ETNode *NodeA = getNode(A);
const ETNode* son = NodeA->getSon();