commit | ba5611a00b86014466a3ecbf3f07035794139ca0 | [log] [tgz] |
---|---|---|
author | Vyacheslav Egorov <vegorov@google.com> | Mon Jul 05 10:45:47 2021 +0000 |
committer | commit-bot@chromium.org <commit-bot@chromium.org> | Mon Jul 05 10:45:47 2021 +0000 |
tree | 6886fed1c38bbae220829f9b6ebcd20434ba768a | |
parent | ed802c248d73890cff5a25834a6b5ac44c4c8ddf [diff] |
[vm/compiler] Do not mutate locs()->stack_bitmap() in RecordSafepoint Instead create a copy of BitmapBuilder and mutate that. This simplifies the logic, avoids unnecessary side-effects and allows us to delete some code which existed solely to validate that two independent slow-path calls don't mutate the same stack_bitmap in incompatible ways. To make it cheap to copy BitmapBuilder we inline BitmapBuilder backing storage into the object itself. Inlined capacity has been chosen by looking at bitmap size distributions from large Flutter applications. TEST=ci Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-linux-release-x64-try Change-Id: I62ecb4ead388a367ad6904471d5923f5d1f5e3f4 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/205783 Commit-Queue: Slava Egorov <vegorov@google.com> Reviewed-by: Tess Strickland <sstrickl@google.com>
Dart is:
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