[all-commits] [llvm/llvm-project] c65d6c: [SelectionDAG] Return std::optional<unsigned> from...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c65d6cb0a1f2dad03c8f11891b5bacb51180c490
      https://github.com/llvm/llvm-project/commit/c65d6cb0a1f2dad03c8f11891b5bacb51180c490
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2025-08-31 (Sun, 31 Aug 2025)

  Changed paths:
    M llvm/include/llvm/CodeGen/SelectionDAG.h
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    M llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
    M llvm/lib/Target/X86/X86ISelLowering.cpp

  Log Message:
  -----------
  [SelectionDAG] Return std::optional<unsigned> from getValidShiftAmount and friends. NFC (#156224)

Instead of std::optional<uint64_t>. Shift amounts must be less than or
equal to our maximum supported bit widths which fit in unsigned. Most of
the callers already assumed it fit in unsigned.



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