tree 23f32bb27a692aac4b919f738da953ff8470f890
parent ae8b2249c8fb43ff894eb6f858c41520cf9ce5cc
author Victor Agnez Lima <victor.agnez46@gmail.com> 1586876309 +0000
committer Alexander Thomas <athom@google.com> 1590510784 +0200

Fix undefined behavior in UnboxedFieldBitmap

UnboxedFieldBitmap was relying that shifting operations would
result in 0 if `position` is larger than the number of bits in the
bitmap, but this is UB.

Closes https://github.com/dart-lang/sdk/pull/41422
https://github.com/dart-lang/sdk/pull/41422

GitOrigin-RevId: 7b6db75ee9247cee54345add6d155f55a501e79e
Change-Id: I27c6fcadb2149826de86067c2378cef57ee3367c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/143000
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>