[all-commits] [llvm/llvm-project] e7bcd8: [SPIRV] Use OpCopyMemory for logical SPIRV memcpy ...

[Steven Perron via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e7bcd80e5bbc9c4c287d835a1df46742ba0fc3e9
      https://github.com/llvm/llvm-project/commit/e7bcd80e5bbc9c4c287d835a1df46742ba0fc3e9
  Author: Steven Perron <stevenperron at google.com>
  Date:   2025-11-26 (Wed, 26 Nov 2025)

  Changed paths:
    M llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
    A llvm/test/CodeGen/SPIRV/llvm-intrinsics/logical-memcpy.ll

  Log Message:
  -----------
  [SPIRV] Use OpCopyMemory for logical SPIRV memcpy (#169348)

This commit modifies the SPIRV instruction selector to emit
`OpCopyMemory`
instead of `OpCopyMemorySized` when generating SPIRV for logical
addressing.

Previously, `G_MEMCPY` was translated to `OpCopyMemorySized`, which
requires an
explicit size operand. However, for logical SPIRV, the size of the
pointee type
is implicitly known. This change ensures that `OpCopyMemory` is used,
which is
more appropriate for logical SPIRV and aligns with the SPIR-V
specification for
logical addressing.



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