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author | Florian Hahn <flo@fhahn.com> | 2023-02-06 18:09:42 +0000 |
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committer | Florian Hahn <flo@fhahn.com> | 2023-02-06 18:09:43 +0000 |
commit | 8028263c41e335bc96c40402f8ab44ad405023de (patch) | |
tree | 54836cd28e4cc5efd3758b6bffe546914578a878 /lldb/source/Plugins/ScriptInterpreter/Python/PythonReadline.h | |
parent | 4b8fdb61afe3444e9b54c9c1d9fbb6cd928b9541 (diff) | |
download | llvm-8028263c41e335bc96c40402f8ab44ad405023de.zip llvm-8028263c41e335bc96c40402f8ab44ad405023de.tar.gz llvm-8028263c41e335bc96c40402f8ab44ad405023de.tar.bz2 |
Recommit "[ConstraintElim] Enable pass by default."
This reverts commit 695ce48c63ec582a46bfbda9b066f4d3bcde143f.
The compile-time regression causing the revert has been fixed. Recommit
the original patch.
Original commit message:
The pass should help to close a functional gap when it comes to
reasoning about related conditions in a relatively general way.
It addresses multiple existing issues (linked below) and the need for a
more powerful reasoning system was also discussed recently in
https://discourse.llvm.org/t/rfc-alternative-approach-of-dealing-with-implications-from-comparisons-through-pos-analysis/65601/7
On AArch64, the new pass performs ~2000 simplifications on
MultiSource,SPEC2006,SPEC2017 with -O3.
Compile-time impact:
NewPM-O3: +0.20%
NewPM-ReleaseThinLTO: +0.32%
NewPM-ReleaseLTO-g: +0.28%
https://llvm-compile-time-tracker.com/compare.php?from=f01a3a893c147c1594b9a3fbd817456b209dabbf&to=577688758ef64fb044215ec3e497ea901bb2db28&stat=instructions:u
Fixes #49344.
Fixes #47888.
Fixes #48253.
Fixes #49229.
Fixes #58074.
Reviewed By: asbirlea
Differential Revision: https://reviews.llvm.org/D135915
Diffstat (limited to 'lldb/source/Plugins/ScriptInterpreter/Python/PythonReadline.h')
0 files changed, 0 insertions, 0 deletions