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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/109154] [13 regression] jump threading
 de-optimizes nested floating point comparisons
Date: Tue, 28 Mar 2023 13:44:25 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109154

--- Comment #30 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
But at least the zone1_100 stuff is unused in #c26, so improving #c28 there
wouldn't help.
  distbb_99 =3D distij_98 - radij_82;
  _27 =3D distbb_99 < 0.0;
  # RANGE [irange] const int [0, 1] NONZERO 0x1
  zone1_100 =3D (const int) _27;
  if (distbb_99 < 0.0)
_27 is only used by the dead zone1_100.

So, we have 2 different testcases now for 2 different issues.=