A field/function annotated with this pragma must be guaranteed to not
return `null` at runtime.
Make use of this non-nullable annotation in the VM's type propagator.
Annotates the "_TypedListView._typedData" field to ensure the VM knows it
returns a non-nullable _TypedListView.
Furthermore annotates methods on the integer implementation. Those particular
methods are recognized methods with a "dynamic" return type. This caused
the type propagator to use CompileType::Dynamic() as result type. Since a
previous CL started to only utilize the annotated type if it is better than
"dynamic" more integer operations got handled in-line, though with null-checks.
Annotating those methods to return non-null improves the in-line handling of
integer operations.
This improves dart-aot
On arm7hf:
SHA256: +5%, SHA: +6%, JsonObjectRoundTrip: +7%, ...
On arm8:
SHA1: +28%, MD5: +25%, SHA256: +15%, TypedData.Int16ListViewBench: +18.5%, StringInterpolation: +18%, ...
Issue https://github.com/dart-lang/sdk/issues/31954
Issue https://github.com/dart-lang/sdk/issues/35154
Change-Id: Ia4263a37241a36c9dc35e8a48893297effa6f4b2
Reviewed-on: https://dart-review.googlesource.com/c/84421
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Martin Kustermann