[HLSL][DirectX] Resource Lowering ☂️

bogner commented 3 months ago

HLSL has buffer, texture, and sampler types that need to be lowered to resource representations when lowered to DXIL and SPIR-V.

Clang/HLSL work:

[ ] Introduce an HLSLResource builtin type (See #90631)
[ ] #95952
[ ] #95956
[ ] #84824
[ ] Implement builtins for texture sampling operations on HLSLResource types that will lower to the llvm intrinsics

DirectX backend work:

[ ] #91366
[ ] #91406
[ ] #92147
[ ] #92148
[ ] #91367
[ ] Introduce llvm.dx.rawBufferLoad/Store and lower them to rawBufferLoad/Store dxil ops
[ ] Implement llvm.dx.getDimensions and lower it to the dxil op
[ ] Implement llvm intrinsics for texture sampling and lower them to the dxil ops
[ ] Implement load/store (and other non-sampling) intrinsics for textures and lower them to dxil ops

Related tasks that need to be updated or refined:

davidcook-msft commented 2 months ago

Blocked on the design being finalized

bogner commented 1 month ago

For the middle/back end parts we need the following tasks:

[ ] #91366
[ ] #91406
[ ] #92147
[ ] #92148
[ ] #91367
[ ] Introduce llvm.dx.rawBufferLoad/Store and lower them to rawBufferLoad/Store dxil ops
[ ] Implement llvm.dx.getDimensions and lower it to the dxil op
[ ] Implement llvm intrinsics for texture sampling and lower them to the dxil ops
[ ] Implement load/store (and other non-sampling) intrinsics for textures and lower them to dxil ops

I'll make a separate list for frontend parts

bogner commented 2 weeks ago

In clang, we'll need these tasks:

[ ] Introduce an HLSLResource builtin type (See #90631)
[ ] #95952
[ ] #95956
[ ] #84824
[ ] Implement builtins for texture sampling operations on HLSLResource types that will lower to the llvm intrinsics

llvm / llvm-project