matrix_single_subscript_load.test

#--- source.hlsl
RWBuffer<int> In : register(u0);
RWBuffer<int> Out : register(u1);

[numthreads(1,1,1)]
void main() {
    int4x4 A = int4x4(In[0],  In[1],  In[2],  In[3],
                      In[4],  In[5],  In[6],  In[7],
                      In[8],  In[9],  In[10], In[11],
                      In[12], In[13], In[14], In[15]);
    
    for (int i = 0; i < 4; i++) {
        int4 B;
        if (i % 2 == 0)
            B = A[i];
        else if (i % 3 == 0)
            B = A[i].bagr;
        else // i == 1
            B.agrb = A[i]; // equivalent: B = A[1].bgar

        for (int j = 0; j < 4; j++) {
            Out[i*4 + j] = B[j];
        }
    }
}
//--- pipeline.yaml

---
Shaders:
  - Stage: Compute
    Entry: main
    DispatchSize: [1, 1, 1]
Buffers:
  - Name: In
    Format: Int32
    Data: [ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]
  - Name: Out
    Format: Int32
    FillSize: 64
  - Name: ExpectedOut
    Format: Int32
    Data: [ 1, 2, 3, 4, 7, 6, 8, 5, 9, 10, 11, 12, 15, 16, 14, 13 ]
Results:
  - Result: Out
    Rule: BufferExact
    Actual: Out
    Expected: ExpectedOut
DescriptorSets:
  - Resources:
    - Name: In
      Kind: RWBuffer
      DirectXBinding:
        Register: 0
        Space: 0
      VulkanBinding:
        Binding: 0
    - Name: Out
      Kind: RWBuffer
      DirectXBinding:
        Register: 1
        Space: 0
      VulkanBinding:
        Binding: 1
...
#--- end


# RUN: split-file %s %t
# RUN: %dxc_target -T cs_6_0 -Fo %t.o %t/source.hlsl
# RUN: %offloader %t/pipeline.yaml %t.o