[PATCH] D95125: [WebAssembly] Enable loop unrolling
Sam Parker via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Jan 26 03:14:43 PST 2021
samparker added a comment.
> But if we do this I'd recommend we at least update changelogs and docs in preparation, to try to minimize the annoyance for users.
Sure and users should definitely be recommended to compile at -Os if code size is their most important metric. From my, admittedly limited, benchmarking the difference between the optimisation levels is quite negligible, yet -Os can reduce size without suffering the performance impact often associated with -Oz.
F15190627: polybench-opt-levels.png <https://reviews.llvm.org/F15190627>
F15190626: adobe-optlevels.png <https://reviews.llvm.org/F15190626>
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