Design Meeting Minutes: 2025/03/18

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Administrivia

• FYI: Updates coming to design meeting terms

Issues

• No marked issues

PRs

Carried Forward

• [0007] Big update to flesh out const instance methods
  • Action Item: @pow2clk to review the PR and comment
  • Action Item: @V-FEXrt & @spall to review
• [0002] Specify the grammar formulations for attributes
  • @llvm-beanz provided update, needs review.
  • Action Item: @V-FEXrt to review.
• [dxil] Proposal to add new debug printf dxil op
  • @pow2clk and @tex3d will review this in more detail.
• [202x] Propose adding vk::SampledTexture* types
  • Ready to merge.
• Specification language to describe flat conversions and aggregate splats
  • @llvm-beanz provided feedback, need second review.
  • Action Item: @spall to update
  • Action Item: @V-FEXrt to review.
• Add proposal for scalar layout for constant buffers
  • Action Item @llvm-beanz - Move to merge.
• Adding proposal for C++ constructors
  • Carried forward - Action Item: @V-FEXrt to review.
  • Action Item @llvm-beanz - Move to merge.

Current Business

• Update on 202x & 202y
  • Request for reviews
• Introduce really rough linalg matrix proposal
  • Request for reviews
• Rough proposal collecting thoughts on uniformity
  • Request for reviews
• Constant buffers language spec - initial draft
  • Action Item: @llvm-beanz to review
  • Action Item: @V-FEXrt to review.

SM 6.9

• Long vector test plan
• Cooperative Vectors Test Plan
• [0029] Use consistent n-byte aligned notation
  • Action Item: @damyanp to merge
• [0029] Clarify 16-byte underling allocation requirement
  • Neds second review
• [0031] Preliminary draft of the HLSL changes for CoopVec
  • Action Item: @llvm-beanz to review
• [0029] Fix some stale type names / typos in Coop Vec D3D API example
  • Action Item: @damyanp to review

Other Discussion

• Report on impact of overload resolution behavior
• 202x
  • Deprecate and remove interface keyword
  • Deprecate existing uniform keyword usage
  • Remove unsized arrays
  • Error on cbuffer variable initializer
  • static variable inside cbuffer are not marked const
    • Action Item: @V-FEXrt to review.
  • Remove HLSL Effects Syntax Support