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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/113178] [14 Regression] ice in
 find_uses_to_rename_use
Date: Sat, 30 Dec 2023 18:46:22 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 14.0
X-Bugzilla-Keywords: ice-on-valid-code, needs-bisection
X-Bugzilla-Severity: normal
X-Bugzilla-Who: pinskia at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
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X-Bugzilla-Target-Milestone: 14.0
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 cf_reconfirmed_on
Message-ID: <bug-113178-4-fIkDgB8Uca@http.gcc.gnu.org/bugzilla/>
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113178

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
           Keywords|                            |needs-bisection
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2023-12-30

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
More reduced testcase and converted into one is C code too:
```
struct PixelWeight {
  int m_SrcStart;
  int m_Weights[16];
};
char h;
void f(struct PixelWeight *pPixelWeights) {
    int dest_g_m;
    long tt;
    for (int j =3D 0; j < 16; j++) {
      int *p =3D 0;
      if (j < pPixelWeights->m_SrcStart)
        p =3D tt ? &pPixelWeights->m_Weights[0] : 0;
      int pWeight =3D *p;
      dest_g_m +=3D pWeight;
    }
    h =3D dest_g_m;
}
```=