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| author | Serge Guelton <sguelton@redhat.com> | 2022-01-03 13:32:19 -0500 |
|---|---|---|
| committer | serge-sans-paille <sguelton@redhat.com> | 2022-01-10 14:49:53 +0100 |
| commit | d2cc6c2d0c2f8a6e272110416a3fd579ed5a3ac1 (patch) | |
| tree | 37a792a98dc78783341b383ac0808ac227327511 /lldb/packages/Python/lldbsuite/test/bench.py | |
| parent | 2c0fb96254fef2509b66d75290fedafd4adede95 (diff) | |
| download | llvm-d2cc6c2d0c2f8a6e272110416a3fd579ed5a3ac1.zip llvm-d2cc6c2d0c2f8a6e272110416a3fd579ed5a3ac1.tar.gz llvm-d2cc6c2d0c2f8a6e272110416a3fd579ed5a3ac1.tar.bz2 | |
Use a sorted array instead of a map to store AttrBuilder string attributes
Using and std::map<SmallString, SmallString> for target dependent attributes is
inefficient: it makes its constructor slightly heavier, and involves extra
allocation for each new string attribute. Storing the attribute key/value as
strings implies extra allocation/copy step.
Use a sorted vector instead. Given the low number of attributes generally
involved, this is cheaper, as showcased by
https://llvm-compile-time-tracker.com/compare.php?from=5de322295f4ade692dc4f1823ae4450ad3c48af2&to=05bc480bf641a9e3b466619af43a2d123ee3f71d&stat=instructions
Differential Revision: https://reviews.llvm.org/D116599
Diffstat (limited to 'lldb/packages/Python/lldbsuite/test/bench.py')
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