[all-commits] [llvm/llvm-project] bb863b: DAG: Handle AssertNoFPClass in computeKnownBits

[Matt Arsenault via All-commits]

  Branch: refs/heads/users/arsenm/dag/computeKnownBits-assert-nofpclass
  Home:   https://github.com/llvm/llvm-project
  Commit: bb863b1346b9be8b77d79d566eba6105873b8293
      https://github.com/llvm/llvm-project/commit/bb863b1346b9be8b77d79d566eba6105873b8293
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-11-09 (Sun, 09 Nov 2025)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    M llvm/test/CodeGen/AMDGPU/compute-known-bits-nofpclass.ll

  Log Message:
  -----------
  DAG: Handle AssertNoFPClass in computeKnownBits

It's possible to determine the sign bit if the value is known
one of the positive/negative classes and not-nan.



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