[all-commits] [llvm/llvm-project] 13f2ae: [X86][AVX] Generalize vperm2f128/vperm2i128 patter...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 13f2aee7831c9bec17006a6d401008df541a121d
      https://github.com/llvm/llvm-project/commit/13f2aee7831c9bec17006a6d401008df541a121d
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2021-01-25 (Mon, 25 Jan 2021)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/lib/Target/X86/X86InstrSSE.td
    M llvm/test/CodeGen/X86/haddsub-2.ll
    M llvm/test/CodeGen/X86/masked_store_trunc.ll
    M llvm/test/CodeGen/X86/var-permute-256.ll
    M llvm/test/CodeGen/X86/vector-reduce-and-bool.ll
    M llvm/test/CodeGen/X86/vector-reduce-or-bool.ll
    M llvm/test/CodeGen/X86/vector-reduce-xor-bool.ll
    M llvm/test/CodeGen/X86/vector-shuffle-256-v16.ll
    M llvm/test/CodeGen/X86/vector-trunc.ll

  Log Message:
  -----------
  [X86][AVX] Generalize vperm2f128/vperm2i128 patterns to support all legal 256-bit vector types

Remove bitcasts to/from v4x64 types through vperm2f128/vperm2i128 ops to help improve shuffle combining and demanded vector elts folding.