From d3d06a5cd80a718a640e26350954197fb133800a Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Tue, 8 Oct 2002 21:53:51 +0000 Subject: [PATCH] - Fix bug: cee/2002-10-07-NoImmediateDominator.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4081 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Scalar/BreakCriticalEdges.cpp | 3 ++- lib/Transforms/Utils/BreakCriticalEdges.cpp | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/lib/Transforms/Scalar/BreakCriticalEdges.cpp b/lib/Transforms/Scalar/BreakCriticalEdges.cpp index b73ed55b8c9..0c4974db10a 100644 --- a/lib/Transforms/Scalar/BreakCriticalEdges.cpp +++ b/lib/Transforms/Scalar/BreakCriticalEdges.cpp @@ -118,7 +118,8 @@ void SplitCriticalEdge(TerminatorInst *TI, unsigned SuccNum, Pass *P) { // The new block is not the immediate dominator for any other nodes, but // TINode is the immediate dominator for the new node. // - DT->createNewNode(NewBB, TINode); + if (TINode) // Don't break unreachable code! + DT->createNewNode(NewBB, TINode); } } diff --git a/lib/Transforms/Utils/BreakCriticalEdges.cpp b/lib/Transforms/Utils/BreakCriticalEdges.cpp index b73ed55b8c9..0c4974db10a 100644 --- a/lib/Transforms/Utils/BreakCriticalEdges.cpp +++ b/lib/Transforms/Utils/BreakCriticalEdges.cpp @@ -118,7 +118,8 @@ void SplitCriticalEdge(TerminatorInst *TI, unsigned SuccNum, Pass *P) { // The new block is not the immediate dominator for any other nodes, but // TINode is the immediate dominator for the new node. // - DT->createNewNode(NewBB, TINode); + if (TINode) // Don't break unreachable code! + DT->createNewNode(NewBB, TINode); } }