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From: "reiter.christoph at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/115038] [14/15 regression] internal error in
 seh_cfa_offset with -O2 -fno-omit-frame-pointer
Date: Sun, 12 May 2024 18:15:25 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D115038

--- Comment #5 from Christoph Reiter <reiter.christoph at gmail dot com> ---
Thanks! I can confirm that "-fno-fold-mem-offsets" works around the issue. =
I'll
test the proposed patch tomorrow.

In the meantime we've reduced another instance of this when building emacs,=
 but
this time with "simpler" C code and without -fno-omit-frame-pointer:

```
// gcc -c -O2 repro.c -> internal compiler error: in seh_cfa_offset
// gcc -c -g3 -O2 -gdwarf-2 repro.c -> internal compiler error: in
dwarf2out_frame_debug_expr
void a() {
    __builtin_unwind_init();
}
```

Adding this here for completeness.=