[all-commits] [llvm/llvm-project] 95b16d: [DAG] Fold trunc(abdu(x, y)) and trunc(abds(x, y)) i...

[woruyu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 95b16d1264725d8aad5a3b951f444fdec04c2224
      https://github.com/llvm/llvm-project/commit/95b16d1264725d8aad5a3b951f444fdec04c2224
  Author: woruyu <99597449+woruyu at users.noreply.github.com>
  Date:   2025-08-08 (Fri, 08 Aug 2025)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    M llvm/test/CodeGen/AArch64/abd-combine.ll
    M llvm/test/CodeGen/AArch64/arm64-neon-aba-abd.ll

  Log Message:
  -----------
  [DAG] Fold trunc(abdu(x,y)) and trunc(abds(x,y)) if they have sufficient leading zero/sign bits (#151471)

This PR resolves https://github.com/llvm/llvm-project/issues/147683

---------

Co-authored-by: Simon Pilgrim <llvm-dev at redking.me.uk>



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