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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug middle-end/100810] [12 Regression] wrong code at -O1 and above
 on x86_64-linux-gnu since r12-397-gda9e6e63d1ae22e530ec7baf59f6ed028bf05776
Date: Tue, 03 Aug 2021 21:36:51 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100810

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
  # i_16 =3D PHI <i_25(D)(21), i_17(9)>
....
  _22 =3D (unsigned int) i_16;
  _48 =3D -_22;
  _49 =3D _39 - _22;
  h_lsm.23_29 =3D (int) _49;

Somehow or another h gets its value from i which causes the incorrect code.
ccp is not at fault.=