[all-commits] [llvm/llvm-project] 1a5792: [SelectionDAG] Add space-optimized forms of OPC_Ch...

[Wang Pengcheng via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1a5792735aa0bb10e5624a438bcf7fd5091ee265
      https://github.com/llvm/llvm-project/commit/1a5792735aa0bb10e5624a438bcf7fd5091ee265
  Author: Wang Pengcheng <wangpengcheng.pp at bytedance.com>
  Date:   2024-01-11 (Thu, 11 Jan 2024)

  Changed paths:
    M llvm/include/llvm/CodeGen/SelectionDAGISel.h
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
    M llvm/test/TableGen/address-space-patfrags.td
    M llvm/test/TableGen/predicate-patfags.td
    M llvm/utils/TableGen/DAGISelMatcherEmitter.cpp

  Log Message:
  -----------
  [SelectionDAG] Add space-optimized forms of OPC_CheckPredicate (#73488)

We record the usage of each `Predicate` and sort them by usage.

For the top 8 `Predicate`s, we will emit a `PC_CheckPredicateN` to
save one byte.

Overall this reduces the llc binary size with all in-tree targets by
about 61K.