Subgroup uniformity language extension (#577)

alan-baker · kainino0x · web-flow · commit a55c3c6d03a1 · 2026-01-21T21:35:36.000-08:00
Spec PR merged here: gpuweb/gpuweb#5431 Co-authored-by: Kai Ninomiya <kainino@chromium.org>
diff --git a/webgpu.h b/webgpu.h
@@ -1245,6 +1245,7 @@ typedef enum WGPUWGSLLanguageFeatureName {
     WGPUWGSLLanguageFeatureName_UniformBufferStandardLayout = 0x00000005,
     WGPUWGSLLanguageFeatureName_SubgroupId = 0x00000006,
     WGPUWGSLLanguageFeatureName_TextureAndSamplerLet = 0x00000007,
+    WGPUWGSLLanguageFeatureName_SubgroupUniformity = 0x00000008,
     WGPUWGSLLanguageFeatureName_Force32 = 0x7FFFFFFF
 } WGPUWGSLLanguageFeatureName WGPU_ENUM_ATTRIBUTE;
 
diff --git a/webgpu.json b/webgpu.json
diff --git a/webgpu.yml b/webgpu.yml
@@ -1516,6 +1516,9 @@ enums:
       - name: texture_and_sampler_let
         doc: |
           TODO
+      - name: subgroup_uniformity
+        doc: |
+          TODO
 bitflags:
   - name: buffer_usage
     doc: |
