1 files changed, 80 insertions, 0 deletions
diff --git a/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/frexp.spec.ts b/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/frexp.spec.ts
new file mode 100644
index 0000000000..02f301f868
--- /dev/null
+++ b/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/frexp.spec.ts
@@ -0,0 +1,80 @@
+export const description = `
+Execution tests for the 'frexp' builtin function
+
+S is f32 or f16
+T is S or vecN<S>
+
+@const fn frexp(e: T) -> result_struct
+
+Splits e into a significand and exponent of the form significand * 2^exponent.
+Returns the result_struct for the appropriate overload.
+
+
+The magnitude of the significand is in the range of [0.5, 1.0) or 0.
+`;
+
+import { makeTestGroup } from '../../../../../../common/framework/test_group.js';
+import { GPUTest } from '../../../../../gpu_test.js';
+import { allInputSources } from '../../expression.js';
+
+export const g = makeTestGroup(GPUTest);
+
+g.test('scalar_f32')
+  .specURL('https://www.w3.org/TR/WGSL/#float-builtin-functions')
+  .desc(
+    `
+f32 tests
+
+struct __frexp_result {
+  sig : f32, // significand part
+  exp : i32  // exponent part
+}
+`
+  )
+  .params(u => u.combine('inputSource', allInputSources))
+  .unimplemented();
+
+g.test('scalar_f16')
+  .specURL('https://www.w3.org/TR/WGSL/#float-builtin-functions')
+  .desc(
+    `
+f16 tests
+
+struct __frexp_result_f16 {
+  sig : f16, // significand part
+  exp : i32  // exponent part
+}
+`
+  )
+  .params(u => u.combine('inputSource', allInputSources))
+  .unimplemented();
+
+g.test('vector_f32')
+  .specURL('https://www.w3.org/TR/WGSL/#float-builtin-functions')
+  .desc(
+    `
+vecN<f32>
+
+struct __frexp_result_vecN {
+  sig : vecN<f32>, // significand part
+  exp : vecN<i32>  // exponent part
+}
+`
+  )
+  .params(u => u.combine('inputSource', allInputSources).combine('vectorize', [2, 3, 4] as const))
+  .unimplemented();
+
+g.test('vector_f16')
+  .specURL('https://www.w3.org/TR/WGSL/#float-builtin-functions')
+  .desc(
+    `
+vecN<f16>
+
+struct __frexp_result_vecN_f16 {
+  sig : vecN<f16>, // significand part
+  exp : vecN<i32>  // exponent part
+}
+`
+  )
+  .params(u => u.combine('inputSource', allInputSources).combine('vectorize', [2, 3, 4] as const))
+  .unimplemented();