microsoft / microsoft/DirectXShaderCompiler

[SPIR-V] Add `StorageBufferArrayNonUniformIndexing` extension when accessing `RWStructuredBuffer` with a non-uniform index.

Open
#7,814 1 comment 1 reaction 1 assignee View on GitHub

@luciechoi is already working on this.

Since Oct 10, 2025.

bug spirv
Dominant language
C++
Stars
3.7k
Forks
900
Avg merge
2d 11h
Merged PRs (30d)
44

Description

Description
Per SPIR-V Specification, StorageBufferArrayNonUniformIndexing capability needs to be added when accessing RWStructuredBuffer with a non-uniform index.

Steps to Reproduce
https://godbolt.org/z/s4PozjYY8

Actual Behavior
OpCapability StorageBufferArrayNonUniformIndexingEXT is missing.

Found while working on https://github.com/llvm/llvm-project/pull/162540.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Assessment

This issue has not been assessed yet.

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.