https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115502
Bug ID: 115502
Summary: [15 regression] ICE when building Valgrind with
-std=c23 (comptypes_same_p, at c/c-typeck.cc:1227)
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: sjames at gcc dot gnu.org
Target Milestone: ---
Created attachment 58436
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58436&action=edit
libcoregrind_amd64_linux_a-m_oset.i.xz
```
$ gcc -c libcoregrind_amd64_linux_a-m_oset.i -std=c23
m_oset.c:340:1: internal compiler error: in comptypes_same_p, at
c/c-typeck.cc:1227
0x5556e69b42c6 comptypes_same_p(tree_node*, tree_node*)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/c/c-typeck.cc:1227
0x5556e5d63467 composite_type_internal(tree_node*, tree_node*,
composite_cache*)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/c/c-typeck.cc:519
0x5556e5d6278a composite_type_internal(tree_node*, tree_node*,
composite_cache*)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/c/c-typeck.cc:439
0x5556e74e9484 composite_type_internal(tree_node*, tree_node*,
composite_cache*)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/c/c-typeck.cc:736
0x5556e7c0f60b composite_type(tree_node*, tree_node*)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/c/c-typeck.cc:754
0x5556e7c0c2b4 merge_decls
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/c/c-decl.cc:2798
0x5556e7c0c2b4 duplicate_decls
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/c/c-decl.cc:3185
0x5556e7424539 pushdecl(tree_node*)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/c/c-decl.cc:3374
0x5556e7be27d6 start_function(c_declspecs*, c_declarator*, tree_node*)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/c/c-decl.cc:10753
0x5556e7bdd88d c_parser_declaration_or_fndef
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/c/c-parser.cc:2919
0x5556e7bdd1af c_parser_external_declaration
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/c/c-parser.cc:2053
0x5556e7bd9fba c_parser_translation_unit
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/c/c-parser.cc:1907
0x5556e7bd9fba c_parse_file()
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/c/c-parser.cc:27303
0x5556e7bcec24 c_common_parse_file()
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/c-family/c-opts.cc:1322
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://bugs.gentoo.org/> for instructions.
```
```
$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/15/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-15.0.9999/work/gcc-15.0.9999/configure
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/15
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/15/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/15
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/15/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/15/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/15/include/g++-v15
--disable-silent-rules --disable-dependency-tracking
--with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/15/python
--enable-languages=c,c++,fortran,rust --enable-obsolete --enable-secureplt
--disable-werror --with-system-zlib --enable-nls --without-included-gettext
--disable-libunwind-exceptions --enable-checking=yes,extra,rtl
--with-bugurl=https://bugs.gentoo.org/ --with-pkgversion='Gentoo Hardened
15.0.9999 p, commit c8bf41759fe849050fcb5c5105483c9db6b15da2'
--with-gcc-major-version-only --enable-libstdcxx-time --enable-lto
--disable-libstdcxx-pch --enable-shared --enable-threads=posix
--enable-__cxa_atexit --enable-clocale=gnu --enable-multilib
--with-multilib-list=m32,m64 --disable-fixed-point --enable-targets=all
--enable-libgomp --disable-libssp --disable-libada --disable-cet
--disable-systemtap --enable-valgrind-annotations --disable-vtable-verify
--disable-libvtv --with-zstd --with-isl --disable-isl-version-check
--enable-default-pie --enable-host-pie --enable-host-bind-now
--enable-default-ssp --disable-fixincludes --with-build-config='bootstrap-O3
bootstrap-lto'
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 15.0.0 20240614 (experimental)
1bb2535c7cb279e6aab731e79080d8486dd50cce (Gentoo Hardened 15.0.9999 p, commit
c8bf41759fe849050fcb5c5105483c9db6b15da2)
```
