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| author | Chris Lattner <sabre@nondot.org> | 2005-03-15 04:40:24 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2005-03-15 04:40:24 +0000 |
| commit | 841957ebaf0fffba1574a4ea5df7188753ea51ac (patch) | |
| tree | e51ef3ae8afbaa293819357fc543a0db22ec4bfe /lib/Analysis/DataStructure/DataStructure.cpp | |
| parent | b0f92e3ed3778dfaa9511b6c0edb6dae97fe894f (diff) | |
Don't crash if computing a mapping to a node with zero size
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20595 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/DataStructure/DataStructure.cpp')
| -rw-r--r-- | lib/Analysis/DataStructure/DataStructure.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Analysis/DataStructure/DataStructure.cpp b/lib/Analysis/DataStructure/DataStructure.cpp index a73a942fc7..a94e083da3 100644 --- a/lib/Analysis/DataStructure/DataStructure.cpp +++ b/lib/Analysis/DataStructure/DataStructure.cpp @@ -2075,6 +2075,8 @@ void DSGraph::computeNodeMapping(const DSNodeHandle &NH1, // mapping the edges together now. int N2Idx = NH2.getOffset()-NH1.getOffset(); unsigned N2Size = N2->getSize(); + if (N2Size == 0) return; // No edges to map to. + for (unsigned i = 0, e = N1->getSize(); i < e; i += DS::PointerSize) if (unsigned(N2Idx)+i < N2Size) computeNodeMapping(N1->getLink(i), N2->getLink(N2Idx+i), NodeMap); |