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| author | Evan Cheng <evan.cheng@apple.com> | 2010-01-08 02:36:12 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2010-01-08 02:36:12 +0000 |
| commit | 58ec4fec88541e06d518a26bd47f26a42d20644b (patch) | |
| tree | 8295bbc10ee25f20f2743793e166f82e844a956c /llvm/lib/CodeGen/SelectionDAG | |
| parent | d1e76b957bf94d986ba1e2c1614cbad82eaf94d0 (diff) | |
| download | bcm5719-llvm-58ec4fec88541e06d518a26bd47f26a42d20644b.tar.gz bcm5719-llvm-58ec4fec88541e06d518a26bd47f26a42d20644b.zip | |
ReplaceAllUsesOfValueWith may delete other nodes that the one being replaced. Do not delete dead nodes again.
llvm-svn: 92988
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp index 10dcc09c8ec..c87e4bf716a 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp @@ -459,7 +459,8 @@ void SelectionDAGISel::ShrinkDemandedOps() { SDNode *N = Worklist.pop_back_val(); if (N->use_empty() && N != CurDAG->getRoot().getNode()) { - CurDAG->DeleteNode(N); + if (N->getOpcode() != ISD::DELETED_NODE) + CurDAG->DeleteNode(N); continue; } |
