[PATCH] D100124: [Clang][NVPTX] Add NVPTX intrinsics and builtins for CUDA PTX redux.sync instructions

[Steffen Larsen via Phabricator via cfe-commits]

steffenlarsen created this revision.
steffenlarsen added reviewers: jdoerfert, jholewinski.
Herald added subscribers: hiraditya, yaxunl.
steffenlarsen requested review of this revision.
Herald added projects: clang, LLVM.
Herald added subscribers: llvm-commits, cfe-commits.

Adds NVPTX builtins and intrinsics for the CUDA PTX `redux.sync` instructions for `sm_80` architecture or newer.

PTX ISA description of `redux.sync`: https://docs.nvidia.com/cuda/parallel-thread-execution/index.html#parallel-synchronization-and-communication-instructions-redux-sync

Authored-by: Steffen Larsen <steffen.larsen at codeplay.com>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D100124

Files:
  clang/include/clang/Basic/BuiltinsNVPTX.def
  clang/test/CodeGenCUDA/redux-builtins.cu
  llvm/include/llvm/IR/IntrinsicsNVVM.td
  llvm/lib/Target/NVPTX/NVPTXInstrInfo.td
  llvm/lib/Target/NVPTX/NVPTXIntrinsics.td
  llvm/test/CodeGen/NVPTX/redux-sync.ll

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