Vulkan: No depth load/store if depthFunc==ALWAYS/NEVER && mask==FALSE If depthFunc is set to always or never pass with depthMask disabled, and the entire render pass is drawing with that state, then there is no need to load or store depth value. Bug: b/243711628 Change-Id: I71d470bda49abc48a4a6e20895b7e056c33fa33a Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3858143 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Yuxin Hu <yuxinhu@google.com> Commit-Queue: Charlie Lao <cclao@google.com>