[all-commits] [llvm/llvm-project] 1e086d: [DAGCombiner] Fix crash in reassociationCanBreakAd...

[Alexander Weinrauch via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1e086d06e984e83988470208afeb52977ff3b2ce
      https://github.com/llvm/llvm-project/commit/1e086d06e984e83988470208afeb52977ff3b2ce
  Author: Alexander Weinrauch <alexander.weinrauch at amd.com>
  Date:   2026-02-10 (Tue, 10 Feb 2026)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    A llvm/test/CodeGen/AMDGPU/dagcombine-reassociate-multi-memop.ll

  Log Message:
  -----------
  [DAGCombiner] Fix crash in reassociationCanBreakAddressingModePattern for multi-memop nodes (#180268)

Two code paths in `reassociationCanBreakAddressingModePattern` were
missing a `hasUniqueMemOperand()` guard before calling
`getAddressSpace()`. Note that on `L1214` we already have the same guard
in place.

`getAddressSpace()` chains through `getPointerInfo()` to
`getMemOperand()`, which asserts that the node has exactly one memory
operand.



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