| commit | 520773b47eba0df02730b929df073e1a38474bae | [log] [tgz] |
|---|---|---|
| author | Helena Kotas <hekotas@microsoft.com> | Wed May 14 18:41:17 2025 -0700 |
| committer | GitHub <noreply@github.com> | Wed May 14 18:41:17 2025 -0700 |
| tree | 1fa2cd37e286512bb22814d354737faaba594196 | |
| parent | 34be80aa6edda60e240e4ea46f28b1b54ababf72 [diff] |
[HLSL] Add resource constructor with implicit binding for global resources (#138976) Adds constructor for resources with implicit binding and applies it to all resources without binding at the global scope. Adds Clang builtin function `__builtin_hlsl_resource_handlefromimplicitbinding` that gets translated to `llvm.dx|spv.resource.handlefromimplicitbinding` intrinsic calls. Specific bindings are assigned in DXILResourceImplicitBinding pass. Design proposals: https://github.com/llvm/wg-hlsl/blob/main/proposals/0024-implicit-resource-binding.md https://github.com/llvm/wg-hlsl/blob/main/proposals/0025-resource-constructors.md One change from the proposals is that the `orderId` parameter is added onto the constructor. Originally it was supposed to be generated in codegen when the `llvm.dx|spv.resource.handlefromimplicitbinding` call is emitted, but that is not possible because the call is inside a constructor, and the constructor body is generated once per resource type and not resource instance. So the only way to inject instance-based data like `orderId` into the `llvm.dx|spv.resource.handlefromimplicitbinding` call is that it must come in via the constructor argument. Closes #136784
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