[all-commits] [llvm/llvm-project] a65e0e: PowerPC: Stop reporting memcpy as an alias of memm...

[Matt Arsenault via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a65e0edd6ac522a21744fa51cef6593fd782dea4
      https://github.com/llvm/llvm-project/commit/a65e0edd6ac522a21744fa51cef6593fd782dea4
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-06-23 (Mon, 23 Jun 2025)

  Changed paths:
    M llvm/include/llvm/CodeGen/TargetLowering.h
    M llvm/include/llvm/IR/RuntimeLibcalls.h
    M llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
    M llvm/lib/CodeGen/PreISelIntrinsicLowering.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    M llvm/lib/IR/RuntimeLibcalls.cpp

  Log Message:
  -----------
  PowerPC: Stop reporting memcpy as an alias of memmove on AIX (#143836)

Instead of reporting ___memmove as an implementation of memcpy,
make it unavailable and let the lowering logic consider memmove as
a fallback path.

This avoids a special case 1:N mapping for libcall implementations.



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