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| author | Florian Hahn <flo@fhahn.com> | 2020-08-21 09:13:59 +0100 |
|---|---|---|
| committer | Florian Hahn <flo@fhahn.com> | 2020-08-21 09:13:59 +0100 |
| commit | a0e92ffd0d663a6f1c39239847d15c0d65d2c3d6 (patch) | |
| tree | b2e9ed0a0f1243414f9a503f01e8b8b0b27ae98f /lldb/source/Commands/CommandObjectProcess.cpp | |
| parent | 85c15f17cc684b35cdb4a5f3a76d45160de7b597 (diff) | |
| download | llvm-a0e92ffd0d663a6f1c39239847d15c0d65d2c3d6.zip llvm-a0e92ffd0d663a6f1c39239847d15c0d65d2c3d6.tar.gz llvm-a0e92ffd0d663a6f1c39239847d15c0d65d2c3d6.tar.bz2 | |
[DSE,MemorySSA] Split off partial tracking from isOverwite.
When traversing memory uses to look for aliasing reads/writes, we only
care about complete overwrites. This patch splits off the partial
overwrite tracking from isOverwrite This avoids some unnecessary work
when checking for read/write clobbers with MemorySSA-DSE.
isOverwrite, which skips the partial overwrite tracking.
This gives a relatively small improvement
http://llvm-compile-time-tracker.com/compare.php?from=ef2a2f77f87553a0a4a39f518eb9ac86b756bda6&to=658f3905dd96d3415f3782adc712c79fa59a4665&stat=instructions
This is part of the patches to bring down compile-time to the level
referenced in
http://lists.llvm.org/pipermail/llvm-dev/2020-August/144417.html
Reviewed By: asbirlea
Differential Revision: https://reviews.llvm.org/D86280
Diffstat (limited to 'lldb/source/Commands/CommandObjectProcess.cpp')
0 files changed, 0 insertions, 0 deletions