[all-commits] [llvm/llvm-project] c33fd3: [AArch64] Lower all fp zero buildvectors through B...

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c33fd3b47faae130518d2217c66da75af0e969b3
      https://github.com/llvm/llvm-project/commit/c33fd3b47faae130518d2217c66da75af0e969b3
  Author: David Green <david.green at arm.com>
  Date:   2023-02-22 (Wed, 22 Feb 2023)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/lib/Target/AArch64/AArch64InstrInfo.td
    M llvm/test/CodeGen/AArch64/arm64-build-vector.ll

  Log Message:
  -----------
  [AArch64] Lower all fp zero buildvectors through BUILD_VECTOR.

Just like with integers, we can treat zero fp buildvector as legal so that they
can be recognized in tablegen patterns using immAllZerosV.