88dc25229b
This change includes a fix for an issue we filed against spirv-tools: https://github.com/KhronosGroup/SPIRV-Tools/issues/4371 So, it should reduce the number of extraneous matrix copies in finalized GLSL code. I did quick size total of all filamat files (*) before and after this update, it went from 11.3 MB to 11.1 MB. (*) All backends are enabled, includes built-in Filament shaders and gltfio ubershaders.
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Diff tests
This directory contains files used to ensure correctness of the spirv-diff implementation. The
generate_tests.py script takes name_src.spvasm and name_dst.spvasm (for each name) and
produces unit test files in the form of name_autogen.cpp.
The unit test files test the diff between the src and dst inputs, as well as between debug-stripped
versions of those. Additionally, based on the {variant}_TESTS lists defined in
generate_tests.py, extra unit tests are added to exercise different options of spirv-diff.
New tests are added simply by placing a new name_src.spvasm and name_dst.spvasm pair in this
directory and running generate_tests.py. Note that this script needs the path to the spirv-diff
executable that is built.
The generate_tests.py script additionally expects name_src.spvasm to include a heading where the
purpose of the test is explained. This heading is parsed as a block of lines starting with ;; at
the top of the file.