add test

tests/bugs/gh-5776.slang

@@ -0,0 +1,45 @@
+//TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj -output-using-type
+//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -dx11 -output-using-type
+//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -dx12 -output-using-type
+//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -cuda -shaderobj -output-using-type
+//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -cpu -shaderobj -output-using-type
+//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -metal -output-using-type
+//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -wgpu -output-using-type
+//
+struct WrappedBuffer<T : IDifferentiable>
+{
+    StructuredBuffer<T> buffer;
+    int shape;
+
+    T get(int idx) { return buffer[idx]; }
+}
+
+struct GradInBuffer<T : IDifferentiable>
+{
+    WrappedBuffer<T.Differential> grad_in;
+}
+
+struct CallData
+{
+    WrappedBuffer<float[1]> grad_in;
+}
+
+
+//TEST_INPUT: set call_data.grad_in.buffer = ubuffer(data=[1.0 2.0], stride=4);
+ParameterBlock<CallData> call_data;
+
+
+//TEST_INPUT:ubuffer(data=[0.0 0.0], stride=4):out, name outputBuffer
+RWStructuredBuffer<float> outputBuffer;
+
+
+[shader("compute")]
+[numthreads(1, 1, 1)]
+void computeMain()
+{
+
+    float[1] data1 = call_data.grad_in.buffer[0];
+    float[1] data2 = call_data.grad_in.get(1);
+    outputBuffer[0] = data1[0];
+    outputBuffer[1] = data2[0];
+}

tests/bugs/gh-5776.slang.expected.txt

@@ -0,0 +1,3 @@
+type: float
+1.000000
+2.000000