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| author | Bing1 Yu <bing1.yu@intel.com> | 2021-10-18 15:41:06 +0800 |
|---|---|---|
| committer | Bing1 Yu <bing1.yu@intel.com> | 2021-10-18 15:44:07 +0800 |
| commit | f383c533110664d41df51b08637df7243c4d6bf7 (patch) | |
| tree | 4cfbf5d8a45d7136bb4f1272f776675c0e30bac2 /lldb/source/Commands/CommandObjectThread.cpp | |
| parent | 67c64d83378e7e84e30801420ebba453987e2546 (diff) | |
| download | llvm-f383c533110664d41df51b08637df7243c4d6bf7.zip llvm-f383c533110664d41df51b08637df7243c4d6bf7.tar.gz llvm-f383c533110664d41df51b08637df7243c4d6bf7.tar.bz2 | |
[MachineSink] Compile time improvement for large testcases which has many kill flags
We did a experiment and observed dramatic decrease on compilation time which spent on clearing kill flags.
Before:
Number of BasicBlocks:33357
Number of Instructions:162067
Number of Cleared Kill Flags:32869
Time of handling kill flags(ms):1.607509e+05
After:
Number of BasicBlocks:33357
Number of Instructions:162067
Number of Cleared Kill Flags:32869
Time of handling kill flags:3.987371e+03
Reviewed By: MatzeB
Differential Revision: https://reviews.llvm.org/D111688
Diffstat (limited to 'lldb/source/Commands/CommandObjectThread.cpp')
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