[ir] When raising to a program handle unreachable as function terminator. If an unreachable is the terminator of a function, and the function is non-void, we swap the terminator out for a `return` of the function return types zero value. This works around an issue where WGSL requires a terminator, but does not have the behaviour analysis to determine if the end of function is actually reachable or not. Bug: 42250952 Change-Id: I5ef07147632d3ac54fdcc911cc844b959861626b Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/246075 Commit-Queue: dan sinclair <dsinclair@chromium.org> Reviewed-by: James Price <jrprice@google.com>
Dawn is an open-source and cross-platform implementation of the WebGPU standard. More precisely it implements webgpu.h that is a one-to-one mapping with the WebGPU IDL. Dawn is meant to be integrated as part of a larger system and is the underlying implementation of WebGPU in Chromium.
Dawn provides several WebGPU building blocks:
webgpu.h version that Dawn implements.webgpu.h.Helpful links:
Developer documentation:
User documentation: (TODO, figure out what overlaps with the webgpu.h docs)
BSD 3-Clause License, please see LICENSE.
This is not an officially supported Google product.