[all-commits] [llvm/llvm-project] 7fb9bb: [mlir][Memref] Add memref.memory_space_cast and it...

[Krzysztof Drewniak via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7fb9bbe5f0c850ae9480e7a35b7e92e721c26039
      https://github.com/llvm/llvm-project/commit/7fb9bbe5f0c850ae9480e7a35b7e92e721c26039
  Author: Krzysztof Drewniak <Krzysztof.Drewniak at amd.com>
  Date:   2023-02-09 (Thu, 09 Feb 2023)

  Changed paths:
    M mlir/include/mlir/Conversion/LLVMCommon/MemRefBuilder.h
    M mlir/include/mlir/Dialect/MemRef/IR/MemRefOps.td
    M mlir/lib/Conversion/LLVMCommon/MemRefBuilder.cpp
    M mlir/lib/Conversion/MemRefToLLVM/MemRefToLLVM.cpp
    M mlir/lib/Conversion/MemRefToSPIRV/MemRefToSPIRV.cpp
    M mlir/lib/Dialect/MemRef/IR/MemRefOps.cpp
    M mlir/test/Conversion/MemRefToLLVM/convert-dynamic-memref-ops.mlir
    M mlir/test/Conversion/MemRefToLLVM/convert-static-memref-ops.mlir
    M mlir/test/Conversion/MemRefToSPIRV/memref-to-spirv.mlir
    M mlir/test/Dialect/MemRef/canonicalize.mlir
    M mlir/test/Dialect/MemRef/ops.mlir

  Log Message:
  -----------
  [mlir][Memref] Add memref.memory_space_cast and its lowerings

Address space casts are present in common MLIR targets (LLVM, SPIRV).
Some planned rewrites (such as one of the potential fixes to the fact
that the AMDGPU backend requires alloca() to live in address space 5 /
the GPU private memory space) may require such casts to be inserted
into MLIR code, where those address spaces could be represented by
arbitrary memory space attributes.

Therefore, we define memref.memory_space_cast and its lowerings.

Depends on D141293

Reviewed By: ftynse

Differential Revision: https://reviews.llvm.org/D141148