[all-commits] [llvm/llvm-project] 1b1172: [AArch64][GlobalISel] Add support for post-indexed...

[Amara Emerson via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1b11729dc037891af9877d3512aca2b8ef61e28b
      https://github.com/llvm/llvm-project/commit/1b11729dc037891af9877d3512aca2b8ef61e28b
  Author: Amara Emerson <amara at apple.com>
  Date:   2023-10-24 (Tue, 24 Oct 2023)

  Changed paths:
    M llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
    M llvm/include/llvm/CodeGen/GlobalISel/GenericMachineInstrs.h
    M llvm/include/llvm/Target/GlobalISel/Combine.td
    M llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
    M llvm/lib/Target/AArch64/AArch64Combine.td
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/lib/Target/AArch64/AArch64ISelLowering.h
    M llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp
    M llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp
    M llvm/lib/Target/AArch64/GISel/AArch64RegisterBankInfo.cpp
    M llvm/lib/Target/AArch64/GISel/AArch64RegisterBankInfo.h
    M llvm/test/CodeGen/AArch64/GlobalISel/combiner-load-store-indexing.ll
    A llvm/test/CodeGen/AArch64/GlobalISel/legalize-indexed-load-stores.mir
    M llvm/test/CodeGen/AArch64/GlobalISel/legalizer-info-validation.mir
    M llvm/test/CodeGen/AArch64/arm64-indexed-memory.ll
    M llvm/test/CodeGen/AArch64/arm64-indexed-vector-ldst.ll

  Log Message:
  -----------
  [AArch64][GlobalISel] Add support for post-indexed loads/stores. (#69532)

Gives small code size improvements across the board at -Os CTMark.

Much of the work is porting the existing heuristics in the DAGCombiner.