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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/112369] [14 regression] ICE when building
 webkit-gtk with -march=raptorlake
Date: Fri, 03 Nov 2023 22:55:59 +0000
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X-Bugzilla-Type: changed
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 14.0
X-Bugzilla-Keywords: ice-on-valid-code
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X-Bugzilla-Who: pinskia at gcc dot gnu.org
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Message-ID: <bug-112369-4-8R08li0lhx@http.gcc.gnu.org/bugzilla/>
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112369

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
           Keywords|needs-reduction             |ice-on-valid-code
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2023-11-03

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Reduced C (and C++) code:
```
struct GdkRGBA2 {
  double a[4];
};
struct GdkRGBA3 {
  float a[4];
};
struct GdkRGBA3 f(struct GdkRGBA2 *color) {
  struct GdkRGBA3 t1;
  for(int i =3D 0; i < 4; i++)
    t1.a[i] =3D color->a[i];
  struct GdkRGBA3 t2;
  for(int i =3D 0; i < 4; i++)
  {
    float tmp =3D t1.a[i];
    if (__builtin_isnan(tmp))
    t2.a[i] =3D tmp;
  }
  return t2;
}

```

It is related to unord folding with convert on a vector type.=