From 45336a6f22de93b38d693fbdde0c96aa84f1e70f Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Tue, 8 Sep 2009 01:22:54 +0000 Subject: [PATCH] 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(-) diff --git a/include/llvm/Analysis/Dominators.h b/include/llvm/Analysis/Dominators.h index 5d1e8ecf128..846bf1e5f87 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: -- 2.34.1