[all-commits] [llvm/llvm-project] 68386a: [mlir][tensor] Fix crash when canonicalizing inval...

[Matthias Springer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 68386a74ba48cf084a56bf54d1efb6b822e28939
      https://github.com/llvm/llvm-project/commit/68386a74ba48cf084a56bf54d1efb6b822e28939
  Author: Matthias Springer <me at m-sp.org>
  Date:   2023-11-21 (Tue, 21 Nov 2023)

  Changed paths:
    M mlir/include/mlir/Dialect/Utils/StaticValueUtils.h
    M mlir/include/mlir/Interfaces/ViewLikeInterface.h
    M mlir/lib/Dialect/Tensor/IR/TensorOps.cpp
    M mlir/lib/Dialect/Utils/StaticValueUtils.cpp
    M mlir/test/Dialect/Tensor/canonicalize.mlir

  Log Message:
  -----------
  [mlir][tensor] Fix crash when canonicalizing invalid IR (#72888)

This commit fixes a crash of the canonicalizer when there are slice ops
with offset/size SSA values that have a negative constant value. Such
ops are invalid if they are reachable and their offsets/sizes should not
be folded to static integer values. (But such ops may appear in
non-reachable block.)

This commit fixes #71150.