Design Meeting Minutes: 2025/09/30

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Administrivia

• No updates

Issues

• No marked issues

PRs

Carried Forward

• [dxil] Proposal to add new debug printf dxil op
  • @tex3d will review this in more detail.
• [202x] Propose adding vk::SampledTexture* types
  • Ready to merge.
• Add proposal for scalar layout for constant buffers
  • Action Item @llvm-beanz - Move to merge.
• Rough proposal collecting thoughts on uniformity
  • Action Item: @llvm-beanz to update
• New Proposal: Draft proposal to modify resource typing in HLSL
  • Action Item: @llvm-beanz to work with author
• Memory and Execuition Model
  • Action Item: @llvm-beanz to continue iterating on the proposal.
• [0001] Consider targeting 202x for hlsl namespace
  • Revisit after namespace fixes in DXC go in.
• [0023] Adopt C++11 Base
  • Action item: @llvm-beanz to complete design
• [0032] Constructors
  • Action item: @llvm-beanz to complete design #526
• [0002] Detail attributes that will replace HLSL annotations
  • Action item: @llvm-beanz to update

Current Business

• [New] Initial draft for memory and execution model
  • Action Item: @spall & @V-FEXrt to review
• [0042] - Restricted Unbounded Arrays
  • Language Spec
    • @hekota to re-review
    • @spall to review
  • Call for acceptance
• [0005] - Strict initializer lists
  • Call for acceptance

Discussion Topics

• Should explicit casts ever create l-values?
  • Action Item: @llvm-beanz file issue for elementwise_cast
  • General consensus: Seems gross, we probably shouldn’t allow this.
  • Action Item: @damyanp and @llvm-beanz to find someone to write a proposal
• Should HLSL allow array return types?
  • Action item: @damyanp and @llvm-beanz to find someone to write a proposal

Other Discussion