message: Add fabs llvm bug
diff: @@ -83,6 +83,8 @@ Please contact us or submit a PR if something is missing or inaccurate.
  26. SCEVExpander introduces branch on poison
  (https://bugs.llvm.org/show_bug.cgi?id=47769)
  +27. Incorrect transformation of fabs with nnan flag
  +(https://bugs.llvm.org/show_bug.cgi?id=47960)
  ### Memory Operations
  