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authorChijun Sima <simachijun@gmail.com>2018-07-09 08:07:21 +0000
committerChijun Sima <simachijun@gmail.com>2018-07-09 08:07:21 +0000
commit9e1e0c7b2ac47dc1d09bbbbd4f5717020cb8b3d4 (patch)
tree8df6486856550ef0cde30f635c89df0325315852 /lldb/packages/Python/lldbsuite/test/python_api/debugger/TestDebuggerAPI.py
parent2dc3dac90ce1dae447e935d5070ea182f77de23e (diff)
downloadbcm5719-llvm-9e1e0c7b2ac47dc1d09bbbbd4f5717020cb8b3d4.tar.gz
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[PGOMemOPSize] Preserve the DominatorTree
Summary: PGOMemOPSize only modifies CFG in a couple of places; thus we can preserve the DominatorTree with little effort. When optimizing SQLite with -O3, this patch can decrease 3.8% of the numbers of nodes traversed by DFS and 5.7% of the times DominatorTreeBase::recalculation is called. Reviewers: kuhar, davide, dmgreen Reviewed By: dmgreen Subscribers: mzolotukhin, vsk, llvm-commits Differential Revision: https://reviews.llvm.org/D48914 llvm-svn: 336522
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