https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116907
Bug ID: 116907
Summary: [15 regression] ICE when building kakoune-2024.05.18
(modref)
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: ipa
Assignee: unassigned at gcc dot gnu.org
Reporter: sjames at gcc dot gnu.org
Target Milestone: ---
Originally reported downstream in Gentoo at https://bugs.gentoo.org/940548.
I need to try extract the testcase so bare with.
```
x86_64-pc-linux-gnu-g++ -std=c++2a -Wall -Wextra -pedantic
-Wno-unused-parameter -Wno-sign-compare -Wno-init-list-lifetime
-Wno-stringop-overflow -O3 -march=native -mtls-dia
lect=gnu2 -flto=jobserver -fno-semantic-interposition -pipe
-fcf-protection=none -fdiagnostics-color=always -fdiagnostics-urls=never
-frecord-gcc-switches -Wa,-O2 -Wa,-mtune=znver2 -Wst
rict-aliasing -Wfree-nonheap-object -Werror=lto-type-mismatch
-Werror=strict-aliasing -Werror=odr -ggdb3 -Wformat -Werror=format-security
-MD -MP -MF src/.option_types.opt.d -c -o src/o
ption_types.opt.o src/option_types.cc
during IPA pass: modref
src/option_types.cc:24:1: internal compiler error: Segmentation fault
24 | }
| ^
0x59f471a4df9c internal_error(char const*, ...)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/diagnostic-global-context.cc:517
0x59f4712c11bc crash_signal
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/toplev.cc:321
0x72562a3053af ???
/usr/src/debug/sys-libs/glibc-2.40-r3/glibc-2.40/signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0
0x59f471e0c59c DFS::DFS_write_tree_body(output_block*, tree_node*, DFS::sccs*,
bool)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/lto-streamer-out.cc:967
0x59f471dfe559 DFS::DFS(output_block*, tree_node*, bool, bool, bool)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/lto-streamer-out.cc:734
0x59f471dfdcdc lto_output_tree(output_block*, tree_node*, bool, bool)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/lto-streamer-out.cc:1860
0x59f471d47470 output_function
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/lto-streamer-out.cc:2451
0x59f471d47470 lto_output()
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/lto-streamer-out.cc:2814
0x59f4725aac15 write_lto
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/passes.cc:2792
0x59f471ee76bd ipa_write_summaries_1
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/passes.cc:2858
0x59f471ee76bd ipa_write_summaries()
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/passes.cc:2914
0x59f471c53b89 ipa_passes
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/cgraphunit.cc:2262
0x59f471c53b89 symbol_table::compile()
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/cgraphunit.cc:2337
0x59f47259e6e8 symbol_table::finalize_compilation_unit()
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/cgraphunit.cc:2589
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.
make: *** [Makefile:118: src/option_types.opt.o] Error 1
```
---
```
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-objc-gc --enable-languages=c,c++,d,go,objc,obj-c++,fortran,ada,m2,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
891af478cc93ae3e2e176ed9739166799b814a05' --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 --enable-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 20240929 (experimental)
a2a78c0639dbebdab19d71f54edca99e7f9094fd (Gentoo Hardened 15.0.9999 p, commit
891af478cc93ae3e2e176ed9739166799b814a05)
```
