[Bug tree-optimization/105903] Missed optimization for __synth3way

pinskia at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Fri Jul 1 22:10:18 GMT 2022


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105903

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
After my patches for PR 96923  (and PR 100864), we get:


  _22 = _16 > _17;
... (some dead statements that PHI-OPT adds due to match and simplify)
  _8 = _16 >= _17;
  _13 = _8 & _22;

But there is nothing which optimizes the above into just _22 (_16 > _17) which
I find interesting ...


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