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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2018-08-16 16:16:28 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2018-08-16 16:16:28 +0000 |
| commit | 0e1813390520a06820070188829c46ce9c7dbd28 (patch) | |
| tree | 12f6cc52ac521b4bfc52642d9ef99bf584176726 /lldb/packages/Python/lldbsuite/test/tools/lldb-mi/TestMiFile.py | |
| parent | 0ea8d8b95177796f2f6d17f0d0981191c19b2864 (diff) | |
| download | bcm5719-llvm-0e1813390520a06820070188829c46ce9c7dbd28.tar.gz bcm5719-llvm-0e1813390520a06820070188829c46ce9c7dbd28.zip | |
[TableGen] TypeSetByHwMode::operator== optimization
This operator is called a great deal, by checking for the cheap isSimple equality cases first (a common occurrence) we can improve performance as we avoid a lot of std::map find/iteration in hasDefault.
isSimple also means that a default value is present, so we can avoid some hasDefault calls.
This also avoids a rather dodgy piece of logic that was checking for isSimple() && !VTS.isSimple() but not the inverse - it now uses the general hasDefault mode comparison test instead.
Saves around 15secs in debug builds of x86 -gen-dag-isel.
Differential Revision: https://reviews.llvm.org/D50841
llvm-svn: 339890
Diffstat (limited to 'lldb/packages/Python/lldbsuite/test/tools/lldb-mi/TestMiFile.py')
0 files changed, 0 insertions, 0 deletions
