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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/111800] New: [14 Regression] ICE with
 -fdump-tree-ccp1-details
Date: Fri, 13 Oct 2023 15:51:26 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
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
X-Bugzilla-Severity: normal
X-Bugzilla-Who: pinskia at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
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X-Bugzilla-Priority: P3
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111800

            Bug ID: 111800
           Summary: [14 Regression] ICE with -fdump-tree-ccp1-details
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pinskia at gcc dot gnu.org
  Target Milestone: ---

Testcase at -O3 -fdump-tree-ccp1-details:
```

void foo(void);
static struct d {
    short e;
} g =3D {205}, *h =3D &g;
static int i;
static int *j, *a =3D &i;
static int **k =3D &j;
static int ****l;
static int *****m;
static char(n)(char b, char c) { return b + c; }
static char(o)(char b, char c) { return b * c; }
static short(p)(short f) {
    if (!(((f) >=3D 1) && ((f) <=3D 65459))) {
        __builtin_unreachable();
    }
    return 0;
}
static int *q(short);
static void s(struct d) { *k =3D q(i); }
static int *q(short ad) {
    int b =3D *a;
    ad =3D -21;
    for (; ad; ad =3D n(ad, 7)) p((ad ^ b && *a) <=3D *a);
    return *k;
}
int main() {
    i =3D 0;
    for (;; i =3D 1) {
        q(3);
        char r =3D o(126 | 1, g.e);
        p(r);
        s(*h);
        if (i) break;
        m =3D &l;
    }
    if (m)
        ;
    else
        foo();
    ;
}
```=