[all-commits] [llvm/llvm-project] ab9e44: [MLIR][NVVM] Add support for mapa MLIR Ops (#124514)

[Srinivasa Ravi via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ab9e447fb17029573a517ac14c4c0f8c0733c3aa
      https://github.com/llvm/llvm-project/commit/ab9e447fb17029573a517ac14c4c0f8c0733c3aa
  Author: Srinivasa Ravi <srinivasar at nvidia.com>
  Date:   2025-01-30 (Thu, 30 Jan 2025)

  Changed paths:
    M mlir/include/mlir/Dialect/LLVMIR/NVVMOps.td
    M mlir/test/Dialect/LLVMIR/invalid.mlir
    M mlir/test/Dialect/LLVMIR/nvvm.mlir
    M mlir/test/Target/LLVMIR/nvvmir.mlir

  Log Message:
  -----------
  [MLIR][NVVM] Add support for mapa MLIR Ops (#124514)

Adds `mapa` and `mapa.shared.cluster` MLIR Ops to generate mapa
instructions.

`mapa` - Map the address of the shared variable in the target CTA.

- `mapa` - source is a register containing generic address pointing to
shared memory.
- `mapa.shared.cluster` - source is a shared memory variable or a
register containing a valid shared memory address.

PTX Spec Reference:

https://docs.nvidia.com/cuda/parallel-thread-execution/#data-movement-and-conversion-instructions-mapa



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