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dawn-cmake/docs/origin-trial-changes.md
Ben Clayton 5e35864c1b writer/spirv: Fix abs() on unsigned integers 
GLSLstd450SAbs expects a *signed* integer.
abs() of an unsigned number is now a no-op.

Fixes WebGPU CTS tests:
webgpu:shader,execution,robust_access_vertex:vertex_buffer_access:*

Bug: tint:1194
Change-Id: I65c5e9f2f03aac0b788b9ba88c383cbec136d7c6
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/65620
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Kokoro: Ben Clayton <bclayton@chromium.org>
Reviewed-by: David Neto <dneto@google.com>
2021-10-01 08:41:55 +00:00

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Tint changes during Origin Trial

Changes for M95

New Features

  • The size of an array can now be defined using a non-overridable module-scope constant
  • The num_workgroups builtin is now supported.

Fixes

  • Hex floats: now correctly errors when the magnitude is non-zero, and the exponent would cause overflow. tint:1150, tint:1166
  • Identifers beginning with an underscore are now correctly rejected. tint:1179
  • abs() fixed for unsigned integers on SPIR-V backend tint:1179