[all-commits] [llvm/llvm-project] d51e34: [LazyCallGraph] Ignore empty RefSCCs rather than s...
aeubanks via All-commits
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Fri Jan 7 09:46:54 PST 2022
Author: Arthur Eubanks <aeubanks at google.com>
Date: 2022-01-07 (Fri, 07 Jan 2022)
[LazyCallGraph] Ignore empty RefSCCs rather than shift RefSCCs when removing dead functions
This is in preparation for D115545 which attempts to delete discardable functions if they are unused. With that change, shifting RefSCCs becomes noticeable in compile time. This change makes the LCG update negligible again.
Reviewed By: nikic
Differential Revision: https://reviews.llvm.org/D116776
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