From 19e37cbf4fa202fc7ca1d769e5ce476f83290dd5 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Sun, 28 Mar 2010 04:54:33 +0000 Subject: [PATCH] don't add flag nodes with chain results to the NowDeadNodes list multiple times when MorphNodeTo can't be applied. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99735 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp index 6c22262d8c5..600557eddfd 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp @@ -1614,8 +1614,9 @@ UpdateChainsAndFlags(SDNode *NodeToMatch, SDValue InputChain, CurDAG->ReplaceAllUsesOfValueWith(SDValue(FRN, FRN->getNumValues()-1), InputFlag, &ISU); - // If the node became dead, delete it. - if (FRN->use_empty()) + // If the node became dead and we haven't already seen it, delete it. + if (FRN->use_empty() && + !std::count(NowDeadNodes.begin(), NowDeadNodes.end(), FRN)) NowDeadNodes.push_back(FRN); } } -- 2.34.1