1 files changed, 33 insertions, 0 deletions
diff --git a/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/atomicStore.spec.ts b/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/atomicStore.spec.ts
new file mode 100644
index 0000000000..18b713ba2e
--- /dev/null
+++ b/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/atomicStore.spec.ts
@@ -0,0 +1,33 @@
+export const description = `
+Atomically stores the value v in the atomic object pointed to by atomic_ptr.
+`;
+
+import { makeTestGroup } from '../../../../../../common/framework/test_group.js';
+import { GPUTest } from '../../../../../gpu_test.js';
+
+export const g = makeTestGroup(GPUTest);
+
+g.test('stage')
+  .specURL('https://www.w3.org/TR/WGSL/#atomic-store')
+  .desc(
+    `
+Atomic built-in functions must not be used in a vertex shader stage.
+`
+  )
+  .params(u => u.combine('stage', ['fragment', 'vertex', 'compute'] as const))
+  .unimplemented();
+
+g.test('store')
+  .specURL('https://www.w3.org/TR/WGSL/#atomic-store')
+  .desc(
+    `
+SC is storage or workgroup
+T is i32 or u32
+
+fn atomicStore(atomic_ptr: ptr<SC, atomic<T>, read_write>, v: T)
+`
+  )
+  .params(u =>
+    u.combine('SC', ['storage', 'uniform'] as const).combine('T', ['i32', 'u32'] as const)
+  )
+  .unimplemented();