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Shiyu Zhang authored
This is a reland of 3b753563 Original change's description: > Reland "[runtime] Cache prototype chain enumerable keys in PrototypeInfo" > > This is a reland of 5253d7bf > > Original change's description: > > [runtime] Cache prototype chain enumerable keys in PrototypeInfo > > > > This CL adds a prototype_chain_enum_cache to cache the enumeration of a > > prototype and its entire chain on the PrototypeInfo. It can improve for-in > > performance via simply merging the receiver enumeration with this cache. > > > > It improves the score of JetStream2-tagcloud-SP case by ~9% on IA Chromebook. > > > > Contributed by tao.pan@intel.com > > > > Change-Id: Ib40bfe41e772672337155584672f06fa1ba1e70d > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1870844 > > Commit-Queue: Shiyu Zhang <shiyu.zhang@intel.com> > > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > > Cr-Commit-Position: refs/heads/master@{#65224} > > Change-Id: I93b74727c46abbaab163324c50fbd977fcc9bb36 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1955232 > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > Commit-Queue: Shiyu Zhang <shiyu.zhang@intel.com> > Cr-Commit-Position: refs/heads/master@{#65377} Change-Id: If4b4631e1b8a3d2df748b6be8500f838836a3291 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2008253 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#65919}
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