|author||Vyacheslav Egorov <firstname.lastname@example.org>||Fri Sep 14 17:39:12 2018 +0000|
|email@example.com <firstname.lastname@example.org>||Fri Sep 14 17:39:12 2018 +0000|
[vm/compiler] Support materializing unboxed variables when entering catch. Previously we tried to rely on the assumption that all variables would be boxed - so the machinery for setting correct catch-entry state only supported tagged values and constants. However this both leads to worse code and is not entirely correct assumption. This also: - renames various confusingly named classes: we move away from talking about "catch entry state" to "catch entry moves" - because we only record a subset of moves that needs to be performed and that does not describe the whole state; - refactors a bunch of associated code to be more readable and maintainable; - adds documentation about catch implementation in optimized code to runtime/docs/compiler; Fixes https://github.com/flutter/flutter/issues/21685. Change-Id: I03ae361a1bb7710acbd9f661ae014e663a163c59 Reviewed-on: https://dart-review.googlesource.com/74860 Commit-Queue: Vyacheslav Egorov <email@example.com> Reviewed-by: Martin Kustermann <firstname.lastname@example.org> Reviewed-by: Alexander Markov <email@example.com>
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