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author | Dan Gohman <gohman@apple.com> | 2009-01-05 22:40:26 +0000 |
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committer | Dan Gohman <gohman@apple.com> | 2009-01-05 22:40:26 +0000 |
commit | a80c859df377908c687d59e9c0fc65006796b719 (patch) | |
tree | 93acee7b2519d3136de9cfdecd214d1f8391941a /lib/CodeGen/ScheduleDAG.cpp | |
parent | 8526cc03a51347ab29737d1e5682aa6a7d095b9b (diff) | |
download | llvm-a80c859df377908c687d59e9c0fc65006796b719.tar.gz llvm-a80c859df377908c687d59e9c0fc65006796b719.tar.bz2 llvm-a80c859df377908c687d59e9c0fc65006796b719.tar.xz |
Don't call setDepthDirty/setHeightDirty when adding an edge
with latency 0, since it doesn't affect the depth or height.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61762 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/ScheduleDAG.cpp')
-rw-r--r-- | lib/CodeGen/ScheduleDAG.cpp | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/lib/CodeGen/ScheduleDAG.cpp b/lib/CodeGen/ScheduleDAG.cpp index c2d291dadd..730080d0fa 100644 --- a/lib/CodeGen/ScheduleDAG.cpp +++ b/lib/CodeGen/ScheduleDAG.cpp @@ -77,8 +77,10 @@ void SUnit::addPred(const SDep &D) { ++N->NumSuccsLeft; N->Succs.push_back(P); Preds.push_back(D); - this->setDepthDirty(); - N->setHeightDirty(); + if (P.getLatency() != 0) { + this->setDepthDirty(); + N->setHeightDirty(); + } } /// removePred - This removes the specified edge as a pred of the current @@ -112,8 +114,10 @@ void SUnit::removePred(const SDep &D) { --NumPredsLeft; if (!isScheduled) --N->NumSuccsLeft; - this->setDepthDirty(); - N->setHeightDirty(); + if (P.getLatency() != 0) { + this->setDepthDirty(); + N->setHeightDirty(); + } return; } } |