diff options
| author | Justin Holewinski <jholewinski@nvidia.com> | 2013-03-20 00:10:32 +0000 |
|---|---|---|
| committer | Justin Holewinski <jholewinski@nvidia.com> | 2013-03-20 00:10:32 +0000 |
| commit | d73dc544f5e37e6d58befc71e57da3c132804543 (patch) | |
| tree | 36c6db5ed73b78c591cf873be430a17f49f8f3fa /lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | |
| parent | 580f9c85fd7a3c90884ed7ee7c2d613923a53bb3 (diff) | |
Propagate DAG node ordering during type legalization and instruction selection
A node's ordering is only propagated during legalization if (a) the new node does
not have an ordering (is not a CSE'd node), or (b) the new node has an ordering
that is higher than the node being legalized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177465 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp index c3b6276a8d..15001f506b 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp @@ -785,8 +785,10 @@ void SelectionDAGISel::DoInstructionSelection() { if (ResNode == Node || Node->getOpcode() == ISD::DELETED_NODE) continue; // Replace node. - if (ResNode) + if (ResNode) { + CurDAG->AssignOrdering(ResNode, CurDAG->GetOrdering(Node)); ReplaceUses(Node, ResNode); + } // If after the replacement this node is not used any more, // remove this dead node. |