[all-commits] [llvm/llvm-project] 82a5c8: [X86][AVX512] Fold concat(and(x, y), and(z, w)) -> an...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 82a5c848e7f531ee636f643450072059397ac90c
      https://github.com/llvm/llvm-project/commit/82a5c848e7f531ee636f643450072059397ac90c
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2020-08-01 (Sat, 01 Aug 2020)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/avx512-insert-extract.ll
    M llvm/test/CodeGen/X86/vector-bitreverse.ll
    M llvm/test/CodeGen/X86/vector-fshl-512.ll
    M llvm/test/CodeGen/X86/vector-fshl-rot-512.ll
    M llvm/test/CodeGen/X86/vector-fshr-512.ll
    M llvm/test/CodeGen/X86/vector-fshr-rot-512.ll
    M llvm/test/CodeGen/X86/vector-idiv-udiv-512.ll
    M llvm/test/CodeGen/X86/vector-rotate-512.ll
    M llvm/test/CodeGen/X86/vector-shift-lshr-512.ll
    M llvm/test/CodeGen/X86/vector-shift-shl-512.ll

  Log Message:
  -----------
  [X86][AVX512] Fold concat(and(x,y),and(z,w)) -> and(concat(x,z),concat(y,w)) for 512-bit vectors

Helps vpternlog folding on non-AVX512BW targets