[all-commits] [llvm/llvm-project] 11455e: [DAG] Unroll vectorized FPOW instructions before w...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 11455e47588940bd397e72e0c50811001c09295e
      https://github.com/llvm/llvm-project/commit/11455e47588940bd397e72e0c50811001c09295e
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2022-05-24 (Tue, 24 May 2022)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
    M llvm/test/CodeGen/X86/pow-libcall.ll

  Log Message:
  -----------
  [DAG] Unroll vectorized FPOW instructions before widening that will scalarize to libcalls anyway

Followup to D125988 - FPOW is similar to FREM and will most likely scalarize to libcalls, so unroll before widening to prevent use making additional libcalls with UNDEF args.