[all-commits] [llvm/llvm-project] 44a0cd: [DAG] visitINSERT_VECTOR_ELT - add <1 x ???> inser...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 44a0cd25dfdf613ca119c8aa97060b8aa139c7ca
      https://github.com/llvm/llvm-project/commit/44a0cd25dfdf613ca119c8aa97060b8aa139c7ca
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2022-06-11 (Sat, 11 Jun 2022)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    M llvm/test/CodeGen/AArch64/arm64-neon-copy.ll
    M llvm/test/CodeGen/ARM/neon-copy.ll

  Log Message:
  -----------
  [DAG] visitINSERT_VECTOR_ELT - add <1 x ???> insert_vector_elt(v0,extract_vector_elt(v1,0),0) special case handling

Check if we're just replacing one v1x?? vector with another


  Commit: c8aaa5d9c3a9540afc7c3dc2f5c0b95a7c7897a9
      https://github.com/llvm/llvm-project/commit/c8aaa5d9c3a9540afc7c3dc2f5c0b95a7c7897a9
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2022-06-11 (Sat, 11 Jun 2022)

  Changed paths:
    M llvm/test/CodeGen/X86/avx512-intrinsics-upgrade.ll
    M llvm/test/CodeGen/X86/avx512vl-intrinsics-upgrade.ll

  Log Message:
  -----------
  [X86][AVX512] Add tests showing failure to retain pmuldq broadcast loads on 32-bit targets

Noticed while investigating the build vector issues on D127115


  Commit: 7841d09449308ff22df4b2757b4d121465b0fa60
      https://github.com/llvm/llvm-project/commit/7841d09449308ff22df4b2757b4d121465b0fa60
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2022-06-11 (Sat, 11 Jun 2022)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/avx512-intrinsics-upgrade.ll
    M llvm/test/CodeGen/X86/avx512vl-intrinsics-upgrade.ll

  Log Message:
  -----------
  [X86][AVX512] Retain pmuldq broadcast loads on 32-bit targets

Don't demand just the lower 32-bits on 32-bit AVX512 targets to preserve 64-bit broadcast loads patterns


Compare: https://github.com/llvm/llvm-project/compare/439a675a5a7d...7841d0944930