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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/111465] [14 regression] stage 3 ICE kills
 bootstrap from r14-4089-gd45ddc2c04e471d0dcee01
Date: Mon, 18 Sep 2023 23:30:33 +0000
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X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 14.0
X-Bugzilla-Keywords: build, ice-checking, ice-on-valid-code
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111465

--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
```
Optimizing block #15

1>>> STMT 1 =3D prephitmp_58 le_expr location_138
1>>> STMT 1 =3D prephitmp_58 ge_expr location_138
1>>> STMT 1 =3D prephitmp_58 eq_expr location_138
1>>> STMT 0 =3D prephitmp_58 ne_expr location_138
Optimizing statement if (iftmp.2_137 <=3D location_138)
  Replaced 'iftmp.2_137' with constant '2147483648'
Applying pattern match.pd:6895, gimple-match-8.cc:2512
Applying pattern match.pd:5745, gimple-match-4.cc:2113
gimple_simplified to _192 =3D (signed int) location_138;
if (_192 < 0)
  Folded to: if (_192 < 0)
 Registering value_relation (_192 pe32 location_138) (bb15) at _192 =3D (si=
gned
int) location_138;
Folding predicate _192 < 0 to 0
Optimizing statement _192 =3D (signed int) location_138;
LKUP STMT _192 =3D nop_expr location_138
2>>> STMT _192 =3D nop_expr location_138



Optimizing block #16

Optimizing statement _16 =3D (signed int) prephitmp_15;
  Replaced 'prephitmp_15' with variable 'location_138'
LKUP STMT _16 =3D nop_expr location_138
FIND: _192
  Replaced redundant expr '(signed int) location_138' with '_192'
=3D=3D=3D=3D ASGN _16 =3D _192
Optimizing statement if (_16 < 0)
  Replaced '_16' with variable '_192'
Folding predicate _192 < 0 to 0
Marking all outgoing edges of unreachable BB 17 as not executable
<<<< STMT _192 =3D nop_expr location_138
<<<< STMT 0 =3D prephitmp_58 ne_expr location_138
<<<< STMT 1 =3D prephitmp_58 eq_expr location_138
<<<< STMT 1 =3D prephitmp_58 ge_expr location_138
<<<< STMT 1 =3D prephitmp_58 le_expr location_138
<<<< COPY prephitmp_15 =3D location_138

```
But _16 is no longer used ...=