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| author | Johannes Doerfert <johannes@jdoerfert.de> | 2019-10-30 17:20:20 -0500 |
|---|---|---|
| committer | Johannes Doerfert <johannes@jdoerfert.de> | 2020-01-29 21:31:04 -0600 |
| commit | 89c2e733e80ee35921ad4aff8058c3ff9d933c54 (patch) | |
| tree | b49cced420a585349a51407bb80c12cb50989bff /llvm/lib/ToolDrivers/llvm-lib/LibDriver.cpp | |
| parent | f0654875fb240ed9d4b2718cfa5f5c7f9d9daef3 (diff) | |
| download | llvm-89c2e733e80ee35921ad4aff8058c3ff9d933c54.zip llvm-89c2e733e80ee35921ad4aff8058c3ff9d933c54.tar.gz llvm-89c2e733e80ee35921ad4aff8058c3ff9d933c54.tar.bz2 | |
[Attributor] Pointer privatization attribute (argument promotion)
A pointer is privatizeable if it can be replaced by a new, private one.
Privatizing pointer reduces the use count, interaction between unrelated
code parts. This is a first step towards replacing argument promotion.
While we can already handle recursion (unlike argument promotion!) we
are restricted to stack allocations for now because we do not analyze
the uses in the callee.
Reviewed By: uenoku
Differential Revision: https://reviews.llvm.org/D68852
Diffstat (limited to 'llvm/lib/ToolDrivers/llvm-lib/LibDriver.cpp')
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