tree 1f4a01412e1ffd7f886825d636de107d63638720
parent 9601bb7f5c9d632f16ad4bc5b2141fb83ce5cc45
author Zhaoming Jiang <zhaoming.jiang@intel.com> 1733282780 +0000
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1733282780 +0000

Dawn: Relax subgroupSizeMin to 8 for D3D12 Intel Gen12LP devices

This CL add a toggle default enabled for D3D12 Intel Gen12LP devices to
relax the minSubgroupSize to 8 rather than reported WaveLaneCountMin, to
solve the issue that these devices may run the fragment shaders with wave
lane count 8 while reporting WaveLaneCountMin as 16.

Bug: 381969450
Change-Id: I2bda4faeb7a196d44bd86b668bfdfa981ee8b757
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/217794
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Alan Baker <alanbaker@google.com>
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>