Ryan Macnak
e925ff9a26
This header is only used by an assert, but the load was not removed by the C++ compiler in release mode. Explicitly exclude the loads with the preprocessor so they only happen in debug mode, and limit the assert reading the backing store's header to non-parallel scavenges only. TEST=tsan Bug: https://github.com/dart-lang/sdk/issues/47895 Change-Id: Idbbdb743404d8ee15b0f8e13332c022453de085c Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/223660 Reviewed-by: Alexander Aprelev <aam@google.com> Commit-Queue: Ryan Macnak <rmacnak@google.com>