[all-commits] [llvm/llvm-project] 5fee83: [AArch64] Promote unpacked SVE f16/bf16 compressst...

[Benjamin Maxwell via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 5fee83dfe895db41930566a9146fdade0e30dd8c
      https://github.com/llvm/llvm-project/commit/5fee83dfe895db41930566a9146fdade0e30dd8c
  Author: Benjamin Maxwell <benjamin.maxwell at arm.com>
  Date:   2026-09-15 (Tue, 15 Sep 2026)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/test/CodeGen/AArch64/sve-masked-compressstore.ll

  Log Message:
  -----------
  [AArch64] Promote unpacked SVE f16/bf16 compressstores 32/64-bit (#222321)

To support compressstore for unpacked 16-bit SVE floats (e.g., nxv2f16),
we need to expand the compressstore before type legalization. If we
expand after type legalization the `VECTOR_COMPRESS` node inserted won't
be promoted to a 32/64-bit element size (which means we'd have to
duplicate some type legalization in the lowering).



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