commit | 37d45743e11970f0eacc0ec864e97891347185f5 | [log] [tgz] |
---|---|---|
author | Tess Strickland <sstrickl@google.com> | Wed Dec 01 08:51:49 2021 +0000 |
committer | Commit Bot <commit-bot@chromium.org> | Wed Dec 01 08:51:49 2021 +0000 |
tree | b363d2652d13e9402261fc8410677a00302ae2ea | |
parent | ae5def7b0d96043cd29115762afade0aba942f3c [diff] |
[vm] Avoid calling runtime when lazily initializing late static fields. This CL changes the handling of late static fields to be similar to the handling of late instance fields. That is, if the field does not need a load guard and has an initializer, the new InitLateStaticField and InitLateFinalStaticField stubs are used, which directly call the initializer function instead of going to the runtime. Thus, the only runtime call left in these cases is when a late final static field is modified by the initializer function, in which case an appropiate exception is thrown. In the case where a late static field might call the initializer function but no initializer exists, a LateInitializationErrorSlowPath is generated to be called if the field value is the sentinel, also similar to the late instance field case. TEST=Refactoring, so existing tests. Change-Id: I95887022d8ece1164a8f7c34b77d9de8c53aa898 Bug: https://github.com/dart-lang/sdk/issues/45138 Cq-Include-Trybots: luci.dart.try:vm-kernel-linux-release-simarm-try,vm-kernel-linux-release-simarm64-try,vm-kernel-linux-release-ia32-try,vm-kernel-linux-release-x64-try,vm-kernel-nnbd-linux-release-ia32-try,vm-kernel-nnbd-linux-release-simarm-try,vm-kernel-nnbd-linux-release-simarm64-try,vm-kernel-nnbd-linux-release-x64-try,vm-kernel-precomp-linux-release-simarm-try,vm-kernel-precomp-linux-release-simarm64-try,vm-kernel-precomp-linux-release-simarm_x64-try,vm-kernel-precomp-linux-release-x64-try,vm-kernel-precomp-nnbd-linux-release-simarm64-try,vm-kernel-precomp-nnbd-linux-release-simarm_x64-try,vm-kernel-precomp-nnbd-linux-release-x64-try Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/220009 Commit-Queue: Tess Strickland <sstrickl@google.com> Reviewed-by: Alexander Markov <alexmarkov@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com>
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