[SM6.10][Exec][Bugfix] Add matrix layout conversion helpers, post-execute command list callback, and re-enable OuterProduct test

[Icohedron]

Addresses the matrix layout conversion requirement of issue #8386

This PR re-enables the OuterProduct smoke test and adds support for matrix layout conversions via new dedicated helper functions in HLSLExecTestUtils.h/.cpp and a new post-execute command list callback in ShaderOpTest.h/.cpp.

• New helper functions getLinAlgMatrixByteSize, recordLinAlgMatrixConversion, and toLinAlgDataType for querying matrix byte sizes, recording a matrix layout conversion operation to a command list, and converting DXIL component type enums into D3D12 LinAlg datatype enums
• A new post-execute command list callback is introduced for allowing tests to record commands that run after a dispatch/draw. A separate DIRECT command list is created that runs after the command list containing the dispatch/draw call
  • The rationale for this is that COMPUTE command lists are not allowed to execute the ConvertLinearAlgebraMatrix command. Instead of converting the COMPUTE command list into a DIRECT command list, I opted to create a separate DIRECT command list that runs after the COMPUTE command list to perform the matrix layout conversion. If it is preferrable to simply change the COMPUTE command list into a DIRECT command list and append the ConvertLinearAlgebraMatrix after the dispatch, I am not opposed to it and can change it per reviewers' requests. I am not sure which is the better solution here
• Re-enable the OuterProduct smoke test with changes made to use the outer-product-optimal layout and uses the new helpers and callback to convert the output back into row-major order for validation

Assisted by: Claude Opus 4.8

[github-actions]

⚠️ C/C++ code formatter, clang-format found issues in your code. ⚠️

You can test this locally with the following command:

git-clang-format --diff 3fe4b7da73b485aa692560c329be9148353893ae c5f5a561b8c97a80982f3de0967bbd0556900ed2 -- tools/clang/unittests/HLSLExec/HlslExecTestUtils.cpp tools/clang/unittests/HLSLExec/HlslExecTestUtils.h tools/clang/unittests/HLSLExec/LinAlgTests.cpp tools/clang/unittests/HLSLExec/ShaderOpTest.cpp tools/clang/unittests/HLSLExec/ShaderOpTest.h

View the diff from clang-format here.

diff --git a/tools/clang/unittests/HLSLExec/HlslExecTestUtils.cpp b/tools/clang/unittests/HLSLExec/HlslExecTestUtils.cpp
index 0a08506b..9453eb13 100644
--- a/tools/clang/unittests/HLSLExec/HlslExecTestUtils.cpp
+++ b/tools/clang/unittests/HLSLExec/HlslExecTestUtils.cpp
@@ -839,7 +839,8 @@ void recordLinAlgMatrixConversion(
   Barrier.Transition.pResource = SrcBuffer;
   Barrier.Transition.Subresource = D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES;
   Barrier.Transition.StateBefore = D3D12_RESOURCE_STATE_UNORDERED_ACCESS;
-  Barrier.Transition.StateAfter = D3D12_RESOURCE_STATE_NON_PIXEL_SHADER_RESOURCE;
+  Barrier.Transition.StateAfter =
+      D3D12_RESOURCE_STATE_NON_PIXEL_SHADER_RESOURCE;
   List->ResourceBarrier(1, &Barrier);
 
   D3D12_LINEAR_ALGEBRA_MATRIX_CONVERSION_INFO Info = {};

• Check this box to apply formatting changes to this branch.