Vyacheslav Egorov
7aeb94423f
This reverts commit eea2c168f9.
Reason for revert: standalone_2/io/test_runner_test times out
python tools/test.py -m release -c precompiler -r dart_precompiled -a simarm64 --use-blobs standalone_2/io/test_runner_test
Original change's description:
> [vm] Detect and expand calls through getters in AOT call specializer.
>
> If we know that receiver is a subclass of a certain type and that this
> type has accessor get:m then call o.m(...) is guaranteed to be an
> invocation through a getter. Such invocations are executed most
> efficiently when expanded into o.get:m().call(...).
>
> Source based pipeline handles this case (at least for invocations on
> `this`) directly in the parser, but Kernel based graph builder does not
> have this sort of special case.
>
> Instead of teaching Kernel flow graph builder to specially handle
> invocations on `this` we teach AOT call specializer to specially handle
> all invocations where receiver is known to be a subclass of certain
> class. Such optimization is more generic and handles things that
> previously were not handled by the optimization.
>
> AOT compiler also has heuristics for injecting field dispatchers into
> classes but these heuristics only handle fields of function type and
> don't work for fields like `Function f` or `var f`.
>
> Improves ParserCombinators benchmark by 4x.
>
> Bug:
> Change-Id: I365d4fb2140577d02aefbf16fcf6be1bd12413a6
> Reviewed-on: https://dart-review.googlesource.com/29840
> Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
> Reviewed-by: Alexander Markov <alexmarkov@google.com>
> Reviewed-by: Martin Kustermann <kustermann@google.com>
TBR=vegorov@google.com,kustermann@google.com,alexmarkov@google.com
Change-Id: I2b891b1674dd07fa43d6414428438c41e3332391
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/30400
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
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