[all-commits] [llvm/llvm-project] eddecd: [SCEV] Increase FoldID bits size cover common cases.
Florian Hahn via All-commits
all-commits at lists.llvm.org
Fri Feb 24 00:43:35 PST 2023
Branch: refs/heads/main
Home: https://github.com/llvm/llvm-project
Commit: eddecd3ade5ce1b827dafb84e8137cc6f89576fb
https://github.com/llvm/llvm-project/commit/eddecd3ade5ce1b827dafb84e8137cc6f89576fb
Author: Florian Hahn <flo at fhahn.com>
Date: 2023-02-24 (Fri, 24 Feb 2023)
Changed paths:
M llvm/include/llvm/Analysis/ScalarEvolution.h
Log Message:
-----------
[SCEV] Increase FoldID bits size cover common cases.
This should fix the regressions introduced by a53d940cee6f by making
sure no dynamic allocations are needed in the common case, while
retaining support for arbitrary SCEV expressions.
Alternative to D144335.
Compile-time impact:
* NewPM-O3: -0.11%
* NewPM-ReleaseThinLTO: -0.10%
*NewPM-ReleaseLTO-g: -0.08%
https://llvm-compile-time-tracker.com/compare.php?from=df016a9525e5722dfd1e1e1632cec3ed7b33bc8a&to=c1c64de4a973bcecaddbc4038a539234eb39413b&stat=instructions:u
Reviewed By: vitalybuka, nikic
Differential Revision: https://reviews.llvm.org/D144382
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