[PATCH] D135837: [mlir][MemRef] Simplify extract_strided_metadata(reinterpret_cast)

[Quentin Colombet via Phabricator via llvm-commits]

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This patch adds a pattern to simplify

  base, offset, sizes, strides =
    extract_strided_metadata(
      reinterpret_cast(src, srcOffset, srcSizes, srcStrides))

Into

  base, baseOffset, ... = extract_strided_metadata(src)
  offset = baseOffset + srcOffset
  sizes = srcSizes
  strides = srcStrides

Note: Reinterpret_cast with unranked sources are not simplified since they cannot feed extract_strided_metadata operations.
Note2: This patch is part of a series that replaces the lowering of view like operations in MemRefToLLVM with composable patterns.
Note3: This patch depends on other patches in that series but only for the output of the tests.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D135837

Files:
  mlir/lib/Dialect/MemRef/Transforms/SimplifyExtractStridedMetadata.cpp
  mlir/test/Dialect/MemRef/simplify-extract-strided-metadata.mlir

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