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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/112374] [14 Regression] Failed bootstrap with
 `--with-arch=skylake-avx512 --with-cpu=skylake-avx512`, causes a comparison
 failure since r14-5076-g01c18f58d37865d5f3bbe93e666183b54ec
Date: Thu, 16 Nov 2023 06:25:47 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112374

--- Comment #30 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Here is another reduced testcase:
```
struct t
{
  long coef[1];
  t(const unsigned long &a) : coef{a} {};
  t(const t &a);
};
extern void gen_int_mode(t, int);
struct expand_vec_perm_d {
  unsigned char perm[64];
  int vmode;
  unsigned char nelt;
};
void expand_vec_perm_blend(struct expand_vec_perm_d *d) {
  unsigned long mask =3D 0;
  for (unsigned i =3D 0; i < 4; ++i)
    mask |=3D (d->perm[i] >=3D 4 ? 3 : 0) << (i * 2);
  gen_int_mode(mask, 0);
}
```

The first difference between -g0 vs -g2 starts in curoll where ssa names are
different.=