[all-commits] [llvm/llvm-project] aa53f6: ValueTracking: Improve handling for fma/fmuladd (#...

[Matt Arsenault via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: aa53f6f3dbeefff3e0bfb81ba936d9dc9087d444
      https://github.com/llvm/llvm-project/commit/aa53f6f3dbeefff3e0bfb81ba936d9dc9087d444
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2026-01-24 (Sat, 24 Jan 2026)

  Changed paths:
    M llvm/include/llvm/Support/KnownFPClass.h
    M llvm/lib/Analysis/ValueTracking.cpp
    M llvm/lib/Support/KnownFPClass.cpp
    M llvm/test/CodeGen/PowerPC/peephole-mma-phi-liveness.ll
    M llvm/test/Transforms/Attributor/nofpclass-fma.ll

  Log Message:
  -----------
  ValueTracking: Improve handling for fma/fmuladd (#175614)

The handling for fma was very basic and only handled the
repeated input case. Re-use the fmul and fadd handling for more
accurate sign bit and nan handling.



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