[all-commits] [llvm/llvm-project] 02c8eb: [mlir][SparseTensor] handle uninitialized transMap...

[Vito Secona via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 02c8eb80ae0d5bd841c81b5439cee197b29fe4fc
      https://github.com/llvm/llvm-project/commit/02c8eb80ae0d5bd841c81b5439cee197b29fe4fc
  Author: Vito Secona <77039267+secona at users.noreply.github.com>
  Date:   2026-05-07 (Thu, 07 May 2026)

  Changed paths:
    M mlir/lib/Dialect/SparseTensor/IR/SparseTensorDialect.cpp
    M mlir/lib/Dialect/SparseTensor/Transforms/SparseReinterpretMap.cpp
    M mlir/test/Dialect/SparseTensor/encoding_with_symbols.mlir

  Log Message:
  -----------
  [mlir][SparseTensor] handle uninitialized transMap when translating shape (#195506)

When translating a shape using
`SparseTensorEncodingAttr::translateShape` from lvl to dim, there is a
possibility that the `transMap` map (`lvlToDim` map under the hood) is
uninitialized. This leads to an assertion error when calling the
`.getResults()` method.

This change adds a guard to check if the `transMap` map is uninitialized
and return early with dynamic shapes. This change also adds a regression
test based on the reproduce MLIR code.

Closes #195464



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