Uniformity analysis of WGSL is too strict and fails to accept some valid shaders, including the coarse rasterization stage of piet-gpu. This is captured in an upstream WGSL bug and mitigations are being discussed. One such mitigation is to opt-out of the analysis.

I'd like a flag to disable uniformity analysis at shader creation time. That flag already exists in the naga API as ValidationFlags, but that's currently hardcoded to all() in wgpu-core's Device::create_shader_module() method, so basically what I'm asking is for that to be plumbed through.

The feature can be a temporary stopgap, and should probably be marked as such, until the issue is resolved upstream.