[all-commits] [llvm/llvm-project] a7a1df: [CodeGen] Remove handling for lifetime.start/end o...

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a7a1df8f72ac6e3a68ec53584107be6542d6666b
      https://github.com/llvm/llvm-project/commit/a7a1df8f72ac6e3a68ec53584107be6542d6666b
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2025-07-22 (Tue, 22 Jul 2025)

  Changed paths:
    M llvm/include/llvm/CodeGen/SelectionDAG.h
    M llvm/include/llvm/CodeGen/SelectionDAGNodes.h
    M llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAGAddressAnalysis.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAGDumper.cpp

  Log Message:
  -----------
  [CodeGen] Remove handling for lifetime.start/end on non-alloca (#149838)

After https://github.com/llvm/llvm-project/pull/149310 we are guaranteed
that the argument is an alloca, so we don't need to look at underlying
objects (which was not a correct thing to do anyway).

This also drops the offset argument for lifetime nodes in SDAG. The
offset is fixed to zero now. (Peculiarly, while SDAG pretended to have
an offset, it just gets silently dropped during selection.)



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