[all-commits] [llvm/llvm-project] 78c845: [Local] collectBitParts - reduce maximum recursion...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 78c8451cd7b1d789fdd81beac0d3f7172bdce31c
      https://github.com/llvm/llvm-project/commit/78c8451cd7b1d789fdd81beac0d3f7172bdce31c
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2021-05-14 (Fri, 14 May 2021)

  Changed paths:
    M llvm/lib/Transforms/Utils/Local.cpp

  Log Message:
  -----------
  [Local] collectBitParts - reduce maximum recursion depth.

As noticed on D90170, the recursion depth for matching a maximum of a i128 bitwidth was too high.

@lebedev.ri mentioned that we can probably do better by limiting the number of collected Values instead of just depth, but I'll look at that later.


  Commit: 079bbea2b20dbfd24e4df654bae1c4324dcde754
      https://github.com/llvm/llvm-project/commit/079bbea2b20dbfd24e4df654bae1c4324dcde754
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2021-05-14 (Fri, 14 May 2021)

  Changed paths:
    M llvm/lib/Transforms/Utils/Local.cpp

  Log Message:
  -----------
  [Local] collectBitParts - for bswap-only matches, limit shift amounts to whole bytes to reduce compile time.


Compare: https://github.com/llvm/llvm-project/compare/7ba0e99aec6e...079bbea2b20d