[all-commits] [llvm/llvm-project] 746076: [SelectionDAG] Fix crash in mask widening for non-...

[Valeriy Savchenko via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 746076bccd5fa18c09a29107eef5c101ea0e2674
      https://github.com/llvm/llvm-project/commit/746076bccd5fa18c09a29107eef5c101ea0e2674
  Author: Valeriy Savchenko <vsavchenko at apple.com>
  Date:   2026-09-22 (Tue, 22 Sep 2026)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
    M llvm/test/CodeGen/X86/vselect-widen-mask-tree.ll

  Log Message:
  -----------
  [SelectionDAG] Fix crash in mask widening for non-simple element types (#225460)

We reconstruct the best fitting type for the two given operands and
those are not guaranteed to have simple types. EVT::getIntegerVT as
opposed to MVT::getIntegerVT handles this case.

Fixes a regression introduced in #217307.



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