[all-commits] [llvm/llvm-project] c9f88e: ValueTracking: fadd/fsub +0 cannot return -0

[Matt Arsenault via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c9f88e5bf027edcebd3ecbc2cebcda57887e04cf
      https://github.com/llvm/llvm-project/commit/c9f88e5bf027edcebd3ecbc2cebcda57887e04cf
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2023-05-16 (Tue, 16 May 2023)

  Changed paths:
    M llvm/include/llvm/Analysis/ValueTracking.h
    M llvm/lib/Analysis/ValueTracking.cpp
    M llvm/test/Transforms/Attributor/nofpclass.ll

  Log Message:
  -----------
  ValueTracking: fadd/fsub +0 cannot return -0

Copied from CannotBeNegativeZero and extended to cover fsub.