tree 001ec48430c238b81ab43023926334649ca33aff
parent 73c5573f1f95aa783a51658d4ce58be69e45e5c1
author Corentin Wallez <cwallez@chromium.org> 1576147222 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1576147222 +0000

RefCounted: use more precise barriers

This improves the DrawCallPerfRun/Vulkan_NoReuseBindGroups benchmark by
2% on an Intel processor but should be a bigger improvement on ARM.

The change was inspired by the Boost documentation at
https://www.boost.org/doc/libs/1_55_0/doc/html/atomic/usage_examples.html
Chromium's base::AtomicRefCount implementation and Rust's core::Arc
implementation.

BUG=dawn:304

Change-Id: I7ca71f34af20fd267cf2efc63871ff330b1dcc7c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14482
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: David Turner <digit@google.com>