From d9ac5deabfa68d437de63461d45b9c2912f527b9 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Tue, 8 Sep 2009 01:22:54 +0000 Subject: fix PR4915, a crash in -debug mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81177 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/Analysis/Dominators.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include/llvm/Analysis') diff --git a/include/llvm/Analysis/Dominators.h b/include/llvm/Analysis/Dominators.h index 5d1e8ec..846bf1e 100644 --- a/include/llvm/Analysis/Dominators.h +++ b/include/llvm/Analysis/Dominators.h @@ -548,7 +548,9 @@ public: o << "DFSNumbers invalid: " << SlowQueries << " slow queries."; o << "\n"; - PrintDomTree(getRootNode(), o, 1); + // The postdom tree can have a null root if there are no returns. + if (getRootNode()) + PrintDomTree(getRootNode(), o, 1); } protected: -- cgit v1.1