From 3b97acdbdb179cf592f62a3491d82f5e234a863c Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Mon, 7 Aug 2006 22:12:12 +0000 Subject: Reverse the FlaggedNodes after scanning up for flagged preds or else the order would be reversed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29545 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/ScheduleDAG.cpp | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) (limited to 'lib') diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp index 97eccb2..2d2c343 100644 --- a/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp +++ b/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp @@ -55,11 +55,16 @@ void ScheduleDAG::BuildSchedUnits() { // Scan up, adding flagged preds to FlaggedNodes. SDNode *N = NI; - while (N->getNumOperands() && - N->getOperand(N->getNumOperands()-1).getValueType() == MVT::Flag) { - N = N->getOperand(N->getNumOperands()-1).Val; - NodeSUnit->FlaggedNodes.push_back(N); - SUnitMap[N] = NodeSUnit; + if (N->getNumOperands() && + N->getOperand(N->getNumOperands()-1).getValueType() == MVT::Flag) { + do { + N = N->getOperand(N->getNumOperands()-1).Val; + NodeSUnit->FlaggedNodes.push_back(N); + SUnitMap[N] = NodeSUnit; + } while (N->getNumOperands() && + N->getOperand(N->getNumOperands()-1).getValueType()== MVT::Flag); + std::reverse(NodeSUnit->FlaggedNodes.begin(), + NodeSUnit->FlaggedNodes.end()); } // Scan down, adding this node and any flagged succs to FlaggedNodes if they -- cgit v1.1