hliao added a comment. In D77777#1975440 <https://reviews.llvm.org/D77777#1975440>, @tra wrote:
> Also, if I read PTX docs correctly, it should be OK to pass texture handle > address via an intermediate variable: > > https://docs.nvidia.com/cuda/parallel-thread-execution/index.html#texture-sampler-and-surface-types > > > Creating pointers to opaque variables using mov, e.g., mov.u64 reg, > > opaque_var;. The resulting pointer may be stored to and loaded from memory, > > passed as a parameter to functions, and de-referenced by texture and > > surface load, store, and query instructions > > We may not need the tokens and should be able to use regular pointer. That handle is the output of `texsurf.handle` intrinsic instead of its input. Internally within NVTPX backend, it needs to keep track of which global variable needs to be a `texref` or `surfref` and requires the operand of `texsurf.handle` must be a global variable. Check `NVPTXReplaceImageHandles.cpp` line 167 - 175. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D77777/new/ https://reviews.llvm.org/D77777 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
