[all-commits] [llvm/llvm-project] ff2f56: [GlobalISel] Add G_ROTL/G_ROTR to computeNumSignBi...

[John Favret via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ff2f56cb619f8a155201bd4c0838303a243ba35f
      https://github.com/llvm/llvm-project/commit/ff2f56cb619f8a155201bd4c0838303a243ba35f
  Author: John Favret <johnfav03 at gmail.com>
  Date:   2026-08-09 (Sun, 09 Aug 2026)

  Changed paths:
    M llvm/include/llvm/Support/KnownBits.h
    M llvm/lib/CodeGen/GlobalISel/GISelValueTracking.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    M llvm/lib/Support/KnownBits.cpp
    M llvm/test/CodeGen/AArch64/GlobalISel/knownbits-rotl-rotr.mir

  Log Message:
  -----------
  [GlobalISel] Add G_ROTL/G_ROTR to computeNumSignBits (#213364)

Port SelectionDAG's `ROTL`/`ROTR` handling to
`GISelValueTracking::computeNumSignBits`.
Addresses one of the subtasks of #150515.

---
Assisted by Claude (Anthropic).



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