SPIR-V Guide

The SPIR-V Guide is designed to help developers get up and going with the world of SPIR-V. This guide is targeted at developers needing to use compilers SPIR-V in their tool chains and for developers wishing to develop custom tooling or compilers that outputs SPIR-V.

Logistics Overview

• What is SPIR-V?
• What can you do with SPIR-V
• SPIR-V Spec
• Internals of SPIR-V
• Capabilities system
• Versions

Tooling

• Khronos provided tooling
• Parsing instructions

Understanding SPIR-V

• Entry Point, Execution Model, and Execution Mode
  • LocalSize and WorkgroupSize
• Types
• Untyped Pointers (SPV_KHR_untyped_pointers)
  • Descriptor Heap (SPV_EXT_descriptor_heap)
• Structs
• Access Chains
• Storage Class
• Image Accesses
• Explicit Layout

Control Flow

• Functions and Blocks
• CFG Unordered Nesting

Outside educational material

• google/spirv-tutor
• Khronos Developer Day Osaka 2023 (video and slides)

Extending SPIR-V

• Extensions overview
  • Extensions by version
• Creating an extension
• Extended instruction sets
• Non-Semantic Instructions
  • NonSemantic Shader DebugInfo