Microsoft DirectX 12 Shifts to SPIR-V as Default Interchange Format | Page 2

SPIR 1.0 and 2.0 are based on LLVM IR, and are not the same thing as SPIR-V. SPIR was also designed primarily for compute, chiefly OpenCL, so I’m not surprised that Adreno OCL SDK supports it.
It’s unable to handle graphical primitives, a deficiency that SPIR-V rectifies while retaining the compute lineage of SPIR.
In fact support for SPIR-V is mandatory in OpenCL 2.1, but… due to certain vendor‘s reluctance to implement full 2.x capabilities the new OpenCL 3.0 version drops that requirement (among with many other features of 2.x).