[all-commits] [llvm/llvm-project] 9bc26e: [NVPTX] Support !"cluster_dim_{x, y, z}" metadata (#...

Alex MacLean via All-commits all-commits at lists.llvm.org
Wed Sep 25 16:49:23 PDT 2024


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9bc26e9e8eb7b63c6a96f93e5644e0511bf3f735
      https://github.com/llvm/llvm-project/commit/9bc26e9e8eb7b63c6a96f93e5644e0511bf3f735
  Author: Alex MacLean <amaclean at nvidia.com>
  Date:   2024-09-25 (Wed, 25 Sep 2024)

  Changed paths:
    M llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp
    M llvm/lib/Target/NVPTX/NVPTXUtilities.cpp
    M llvm/lib/Target/NVPTX/NVPTXUtilities.h
    A llvm/test/CodeGen/NVPTX/cluster-dim.ll

  Log Message:
  -----------
  [NVPTX] Support !"cluster_dim_{x,y,z}" metadata (#109548)

Add support for !"cluster_dim_{x,y,z}" metadata to allow specifying
cluster dimensions on a kernel function in llvm.

If any of these metadata entries are present, the `.explicitcluster` PTX
directive is used and the specified dimensions are lowered with the
`.reqnctapercluster` directive. For more details see:
[PTX ISA: 11.7. Cluster Dimension Directives]
(https://docs.nvidia.com/cuda/parallel-thread-execution/index.html#cluster-dimension-directives)



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