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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/113077] New: [14 Regression] ICE in 
 dwarf2out_frame_debug_cfa_offset with `-O2 -fstack-protector-strong
 -fstack-clash-protection`
Date: Tue, 19 Dec 2023 03:44:43 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: middle-end
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
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113077

            Bug ID: 113077
           Summary: [14 Regression] ICE in
                    dwarf2out_frame_debug_cfa_offset with `-O2
                    -fstack-protector-strong -fstack-clash-protection`
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pinskia at gcc dot gnu.org
  Target Milestone: ---
            Target: aarch64-linux-gnu

Reduced testcase:
```
void add_key(const void *payload);
void act_keyctl_test(void) {
  char buf[1030 * 1024];
  int i =3D 0;
  for (i =3D 0; i < sizeof(buf); i++)=20
  {
    add_key(buf);
  }
}

```

```
$ ./install/bin/aarch64-linux-gnu-gcc Hgs7.i -O2  -S=20=20=20
-fstack-protector-strong -fstack-clash-protection
during RTL pass: dwarf2
keyctl_testing.c: In function =E2=80=98act_keyctl_test_limits2=E2=80=99:
keyctl_testing.c:225:1: internal compiler error: in
dwarf2out_frame_debug_cfa_offset, at dwarf2cfi.cc:1376
0x78228a dwarf2out_frame_debug_cfa_offset
        ../../gcc/dwarf2cfi.cc:1376
0x78228a dwarf2out_frame_debug
        ../../gcc/dwarf2cfi.cc:2285
0x78228a scan_insn_after
        ../../gcc/dwarf2cfi.cc:2726
0xb8c55b scan_trace
        ../../gcc/dwarf2cfi.cc:2893
0xb8ccbe create_cfi_notes
        ../../gcc/dwarf2cfi.cc:2933
0xb8ccbe execute_dwarf2_frame
        ../../gcc/dwarf2cfi.cc:3309
0xb8ccbe execute
        ../../gcc/dwarf2cfi.cc:3797
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
```=