[all-commits] [llvm/llvm-project] 083f9c: [AArch64][GISel] Widen non-power2 element sizes fo...

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 083f9c158a6ecc3a0a1d9bb5c0997af036a4efbd
      https://github.com/llvm/llvm-project/commit/083f9c158a6ecc3a0a1d9bb5c0997af036a4efbd
  Author: David Green <david.green at arm.com>
  Date:   2026-04-02 (Thu, 02 Apr 2026)

  Changed paths:
    M llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
    M llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp
    M llvm/test/CodeGen/AArch64/ctlz.ll

  Log Message:
  -----------
  [AArch64][GISel] Widen non-power2 element sizes for ctlz. (#189371)

This addresses an illegal mutation kind, where gisel would hit an
assert. It expands vector elements for non-power2 elements or elements
less that i8 to a power of 2.

A fix to handle vector types correctly was needed in LegalizerHandler.

Fixes #185411



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