[SM6.9] Load and store long vectors from and to StructuredBuffers

[pow2clk]

Vectors of length greater than 4 should be loadable from StructuredBuffers using the standard Load Store methods as well as subscript operators. These should generate rawBufferLoad and rawBufferStore DXIL intrinsics that operate on whole vectors rather than the previous 4 component at a time blocks.

Testing should be in the form of loading types with various shapes and element types involving long vectors using the different load methods and store. This should include

• long vectors directly
• vectors as members of structs that are not the first element (requires valid offset loading)
• arrays of long vectors
• array of structs containing vectors
• struct of arrays containing vectors