https://github.com/llvm-beanz commented:
I think we need to think a bit about the IR metadata in the middle of the compiler and how it will be used in various scenarios. DXIL and SPIR-V both have branch hints that indicate to the GPU backends if a branch should be profitable to flatten or preserve. 1) We shouldn't use a DirectX-named metadata field to drive behaviors in the SPIR-V backend. 2) In the case where we load SPIR-V or DXIL into LLVM and then lower to a GPU ISA (like AMDGPU), we'll want to translate SPIR-V and DXIL's annotations into a generic LLVM annotation that backends can broadly accept. This same case comes into play if we ever support direct from HLSL -> ISA compiling where we'll want the backends to respect the metadata. https://github.com/llvm/llvm-project/pull/116331 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
