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From: "belka at caraus dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug d/108877] New: Explicit immutable struct import internal
 compiler error
Date: Tue, 21 Feb 2023 20:04:22 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: d
X-Bugzilla-Version: 12.2.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: belka at caraus dot de
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: ibuclaw at gdcproject dot org
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108877

            Bug ID: 108877
           Summary: Explicit immutable struct import internal compiler
                    error
           Product: gcc
           Version: 12.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: d
          Assignee: ibuclaw at gdcproject dot org
          Reporter: belka at caraus dot de
  Target Milestone: ---

We have 2 files. util/Version.d:

```
module util.Version;

immutable struct Ver
{
}
```
and the main file:

```
import util.Version : Ver;
```

Compiling with =E2=80=9Egdc-12 -c util/Version.d version_test.d=E2=80=9C re=
sults in the error:

> version_test.d:1:8: internal compiler error: in make_import, at d/imports=
.cc:48
>     1 | import util.Version : Ver;
>       |        ^
> 0x1bc1e87 internal_error(char const*, ...)
> 	???:0
> 0x7d27f3 fancy_abort(char const*, int, char const*)
> 	???:0
> 0x9d4214 ImportVisitor::visit(AggregateDeclaration*)
> 	???:0
> 0x9d3cfe build_import_decl(Dsymbol*)
> 	???:0
> 0x9ca0ff DeclVisitor::visit(Import*)
> 	???:0
> 0x9c70a6 build_decl_tree(Dsymbol*)
> 	???:0
> 0x9d6fc0 build_module_tree(Module*)
> 	???:0
> 0x9c9f4b DeclVisitor::visit(Module*)
> 	???:0
> 0x9c70a6 build_decl_tree(Dsymbol*)
> 	???:0
> Please submit a full bug report, with preprocessed source (by using -frep=
ort-bug).
> Please include the complete backtrace with any bug report.
> See <https://gcc.gnu.org/bugs/> for instructions.

This is reproducable with gdc-12.2.0 and gdc 11.2.0. GDC 12.2.0 info:

> gdc-12 -v
> Using built-in specs.
> COLLECT_GCC=3Dgdc-12
> COLLECT_LTO_WRAPPER=3D/usr/libexec/gcc/x86_64-slackware-linux/12/lto-wrap=
per
> Target: x86_64-slackware-linux
> Configured with: ../gcc-12.2.0/configure --prefix=3D/usr --libdir=3D/usr/=
lib64 --mandir=3D/usr/man --infodir=3D/usr/info --enable-shared --disable-b=
ootstrap --enable-languages=3Dc,c++,d --enable-threads=3Dposix --enable-che=
cking=3Drelease --with-system-zlib --disable-libquadmath-support --with-def=
ault-libstdcxx-abi=3Dnew --disable-libstdcxx-pch --disable-libunwind-except=
ions --enable-__cxa_atexit --disable-libssp --enable-gnu-unique-object --en=
able-plugin --enable-lto --disable-install-libiberty --disable-werror --wit=
h-gcc-major-version-only --with-isl --program-suffix=3D-12 --with-arch-dire=
ctory=3Damd64 --disable-gtktest --enable-clocale=3Dgnu --disable-multilib -=
-target=3Dx86_64-slackware-linux --build=3Dx86_64-slackware-linux --host=3D=
x86_64-slackware-linux
> Thread model: posix
> Supported LTO compression algorithms: zlib zstd
> gcc version 12.2.0 (GCC)=