diff options
| author | Kai Luo <lkail@cn.ibm.com> | 2019-07-19 12:58:16 +0000 |
|---|---|---|
| committer | Kai Luo <lkail@cn.ibm.com> | 2019-07-19 12:58:16 +0000 |
| commit | dec624682e062dabfb0a535a9b975e5b550f8f29 (patch) | |
| tree | 429f650443acb9f063726984807537fd439db90c /lldb/packages/Python/lldbsuite/test/python_api/signals/main.cpp | |
| parent | e238a4c7570a701603e73359c281b4833ccdb348 (diff) | |
| download | bcm5719-llvm-dec624682e062dabfb0a535a9b975e5b550f8f29.tar.gz bcm5719-llvm-dec624682e062dabfb0a535a9b975e5b550f8f29.zip | |
[MachineCSE][MachinePRE] Avoid hoisting code from code regions into hot BBs.
Summary:
Current PRE hoists common computations into
CMBB = DT->findNearestCommonDominator(MBB, MBB1).
However, if CMBB is in a hot loop body, we might get performance
degradation.
Differential Revision: https://reviews.llvm.org/D64394
llvm-svn: 366570
Diffstat (limited to 'lldb/packages/Python/lldbsuite/test/python_api/signals/main.cpp')
0 files changed, 0 insertions, 0 deletions
