SPIR-V

1. SPIR-V registry

   Registry of SPIR-V specs, headers and extension grammars.

2. SPIR-V specification

   Instruction set, modules and decorations.

3. SPIRV-Tools

   spirv-val, spirv-opt and spirv-dis for validating and optimizing SPIR-V.

4. SPIRV-Cross

   Translating SPIR-V to GLSL, HLSL and MSL.

5. Extended instruction sets

   GLSL.std.450 and other extended instruction set specifications.

6. Khronos SPIR

   Overview of the SPIR family of intermediate representations.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.