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| author | Stephen Hines <srhines@google.com> | 2013-05-02 16:19:29 -0700 |
|---|---|---|
| committer | Stephen Hines <srhines@google.com> | 2013-05-02 16:19:29 -0700 |
| commit | 38578c4919ea18ceb27e29988b2d857afe6215bf (patch) | |
| tree | 6718ee1e6a1a59f46b6c847439ebfcd291c1e393 /lib/CodeGen/SelectionDAG/SDNodeOrdering.h | |
| parent | ffb69c62ac54b0af5768ae9486b93b39a6c6b94c (diff) | |
| parent | a7a05ee70cb07f32996a0587a636b406c746b71b (diff) | |
| download | external_llvm-38578c4919ea18ceb27e29988b2d857afe6215bf.zip external_llvm-38578c4919ea18ceb27e29988b2d857afe6215bf.tar.gz external_llvm-38578c4919ea18ceb27e29988b2d857afe6215bf.tar.bz2 | |
Merge remote-tracking branch 'upstream/master' into merge-20130502
Conflicts:
lib/Support/Unix/Signals.inc
unittests/Transforms/Utils/Cloning.cpp
Change-Id: I027581a4390ec3ce4cd8d33da8b5f4c0c7d372c8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SDNodeOrdering.h')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SDNodeOrdering.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/SDNodeOrdering.h b/lib/CodeGen/SelectionDAG/SDNodeOrdering.h index d2269f8..7e7b897 100644 --- a/lib/CodeGen/SelectionDAG/SDNodeOrdering.h +++ b/lib/CodeGen/SelectionDAG/SDNodeOrdering.h @@ -33,8 +33,10 @@ class SDNodeOrdering { public: SDNodeOrdering() {} - void add(const SDNode *Node, unsigned O) { - OrderMap[Node] = O; + void add(const SDNode *Node, unsigned NewOrder) { + unsigned &OldOrder = OrderMap[Node]; + if (OldOrder == 0 || (OldOrder > 0 && NewOrder < OldOrder)) + OldOrder = NewOrder; } void remove(const SDNode *Node) { DenseMap<const SDNode*, unsigned>::iterator Itr = OrderMap.find(Node); |