[all-commits] [llvm/llvm-project] 26f6f8: [AArch64] Add custom v2i32->v2i16 store lowering. ...

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 26f6f833e6b11db16003fe6033049b9a6f615019
      https://github.com/llvm/llvm-project/commit/26f6f833e6b11db16003fe6033049b9a6f615019
  Author: David Green <david.green at arm.com>
  Date:   2026-09-28 (Mon, 28 Sep 2026)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/test/CodeGen/AArch64/add.ll
    M llvm/test/CodeGen/AArch64/andorxor.ll
    M llvm/test/CodeGen/AArch64/arm64-rev.ll
    M llvm/test/CodeGen/AArch64/arm64-storebytesmerge.ll
    M llvm/test/CodeGen/AArch64/bitcast.ll
    M llvm/test/CodeGen/AArch64/ctlz.ll
    M llvm/test/CodeGen/AArch64/ctpop.ll
    M llvm/test/CodeGen/AArch64/cttz.ll
    M llvm/test/CodeGen/AArch64/ldst-opt.ll
    M llvm/test/CodeGen/AArch64/lowmaskedlanes.ll
    M llvm/test/CodeGen/AArch64/mul.ll
    M llvm/test/CodeGen/AArch64/neon-rshrn.ll
    M llvm/test/CodeGen/AArch64/neon-truncstore.ll
    M llvm/test/CodeGen/AArch64/sadd_sat_vec.ll
    M llvm/test/CodeGen/AArch64/shufflevector.ll
    M llvm/test/CodeGen/AArch64/ssub_sat_vec.ll
    M llvm/test/CodeGen/AArch64/store.ll
    M llvm/test/CodeGen/AArch64/sub.ll
    M llvm/test/CodeGen/AArch64/uadd_sat_vec.ll
    M llvm/test/CodeGen/AArch64/usub_sat_vec.ll
    M llvm/test/CodeGen/AArch64/vec3-loads-ext-trunc-stores.ll

  Log Message:
  -----------
  [AArch64] Add custom v2i32->v2i16 store lowering. (#223659)

This extends the existing v4i16->v4i8 lowering to handle v2i32->v2i16
stores too, which in general helps keep the number of instructions down.



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