[all-commits] [llvm/llvm-project] 1f07bf: [mlir][tensor] Implement folding logic for size 0 ...

[Spenser Bauman via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1f07bfb92c2a62731a5ae3ec2d135e3869634c01
      https://github.com/llvm/llvm-project/commit/1f07bfb92c2a62731a5ae3ec2d135e3869634c01
  Author: Spenser Bauman <sbauman at mathworks.com>
  Date:   2024-05-20 (Mon, 20 May 2024)

  Changed paths:
    M mlir/lib/Dialect/MemRef/IR/MemRefOps.cpp
    M mlir/lib/Dialect/Tensor/IR/TensorOps.cpp
    M mlir/test/Dialect/MemRef/canonicalize.mlir
    M mlir/test/Dialect/Tensor/canonicalize.mlir

  Log Message:
  -----------
  [mlir][tensor] Implement folding logic for size 0 tensor and memref ops (#90814)

Implement folding and rewrite logic to eliminate no-op tensor and memref
operations. This handles two specific cases:

1. tensor.insert_slice operations where the size of the inserted slice
is known to be 0.
2. memref.copy operations where either the source or target memrefs are
known to be emtpy.

Co-authored-by: Spenser Bauman <sabauma at fastmail>



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