Commit 53e37a3eef516a2f6191d81f696cd9be8e2feef7
2023-09-29T14:15:37
Replace mActiveTextures.fill(nullptr) with memset std::array::fill yields unoptimized, unrolled loop with 8 byte increments. Surprisingly high (>2%) effect on the instructions counter in my tests (first frame of real_racing3 trace) The number of samples hitting this spot in profiling is also signficantly reduced. Impact on power harder to judge due to noise but does seem to be a bit better. Added a FillWithNullptr utility to check that nullptr is 0 and used it in other places where fill(nullptr) was used in ContextVk. It's not used elsewhere in vulkan. Bug: b/302708437 Change-Id: If7fab66d858bc10ca356418d2ab26232bb9a9ce7 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4902288 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Roman Lavrov <romanl@google.com> Reviewed-by: Charlie Lao <cclao@google.com>