This is a reland of commit 77d08fcde5
Original change's description:
> [static-roots] Use static map range checks instead of instance types
>
> Some instance types, or type ranges, corresponds to a range of pointers
> in the static read only roots table. Instead of loading the instance
> type of a map it can therefore be beneficial to compare the map itself
> against this range.
>
> This CL adds:
>
> * Add infrastructure to compute and output a mapping of
> `(instance_type_first, instance_type_last) ->
> (map_ptr_first, map_ptr_last)` for interesting ranges.
> * Extend InstanceTypeChecker to use these ranges.
>
> For single instance types that map onto a range of maps it is not
> obvious which check is faster. Checking the map range saves a load,
> whereas checking the instance type saves an additional jump.
>
> Bug: v8:13466
> Change-Id: I670fc10fad9920645c0ce0d976ae7e7a13a86e60
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4188379
> Reviewed-by: Jakob Linke <jgruber@chromium.org>
> Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
> Commit-Queue: Olivier Flückiger <olivf@chromium.org>
> Auto-Submit: Olivier Flückiger <olivf@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#85599}
Bug: v8:13466
Change-Id: I0317a7b88e391e0a7502cc056a2fe691d294fba1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4217131
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Auto-Submit: Olivier Flückiger <olivf@chromium.org>
Reviewed-by: Jakob Linke <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#85614}
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