1 files changed, 43 insertions, 0 deletions
diff --git a/tests/autodiff-dstdlib/dstdlib-pow.slang b/tests/autodiff-dstdlib/dstdlib-pow.slang
new file mode 100644
index 000000000..66f919b03
--- /dev/null
+++ b/tests/autodiff-dstdlib/dstdlib-pow.slang
@@ -0,0 +1,43 @@
+//TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj -output-using-type
+//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj -output-using-type
+
+//TEST_INPUT:ubuffer(data=[0 0 0 0 0 0], stride=4):out,name=outputBuffer
+RWStructuredBuffer<float> outputBuffer;
+
+typedef DifferentialPair<float> dpfloat;
+typedef DifferentialPair<float2> dpfloat2;
+typedef DifferentialPair<float3> dpfloat3;
+
+[ForwardDifferentiable]
+float diffPow(float x, float y)
+{
+    return pow(x, y);
+}
+
+[ForwardDifferentiable]
+float2 diffPow2(float2 x, float2 y)
+{
+    return pow(x, y);
+}
+
+[numthreads(1, 1, 1)]
+void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID)
+{
+    {
+        dpfloat dpx = dpfloat(5.0, 1.0);
+        dpfloat dpy = dpfloat(3.0, 0.0);
+        dpfloat res = __fwd_diff(diffPow)(dpx, dpy);
+        outputBuffer[0] = res.p;               // Expect: 125.000000
+        outputBuffer[1] = res.d;               // Expect: 75.000000
+    }
+
+    {
+        dpfloat2 dpx = dpfloat2(float2(10.0, 3.0), float2(0.0, -2.0));
+        dpfloat2 dpy = dpfloat2(float2(2.5, 4.0), float2(1.0, 1.0));
+        dpfloat2 res = __fwd_diff(diffPow2)(dpx, dpy);
+        outputBuffer[2] = res.p[0];            // Expect: 316.227722
+        outputBuffer[3] = res.d[0];            // Expect: 728.141235
+        outputBuffer[4] = res.p[1];            // Expect: 81.000000
+        outputBuffer[5] = res.d[1];            // Expect: -127.012398
+    }
+}