https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118207
Bug ID: 118207
Summary: [15 regression] ICE when building
dosbox-staging-0.82.0 (in fold_convert_loc, at
fold-const.cc:2779)
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: sjames at gcc dot gnu.org
Target Milestone: ---
Created attachment 59980
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59980&action=edit
imfc.cpp.ii.xz
```
$ g++ -c ./src/hardware/libhardware.a.p/imfc.cpp.ii -std=c++20 -O3
during GIMPLE pass: fre
../dosbox-staging-0.82.0/src/hardware/imfc.cpp: In member function ‘void
MusicFeatureCard::initConfigurationMemory()’:
../dosbox-staging-0.82.0/src/hardware/imfc.cpp:5833:14: internal compiler
error: in fold_convert_loc, at fold-const.cc:2779
5833 | void initConfigurationMemory()
| ^~~~~~~~~~~~~~~~~~~~~~~
0x5ab6729f940c internal_error(char const*, ...)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/diagnostic-global-context.cc:517
0x5ab6729f95a7 fancy_abort(char const*, int, char const*)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/diagnostic.cc:1722
0x5ab670e925ba fold_convert_loc(unsigned long, tree_node*, tree_node*)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/fold-const.cc:2779
0x5ab67100c03e fold_stmt_1
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/gimple-fold.cc:6714
0x5ab672e9ef55 fold_stmt(gimple_stmt_iterator*, tree_node* (*)(tree_node*),
bitmap_head*)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/gimple-fold.cc:6815
0x5ab672e9ef55 eliminate_dom_walker::eliminate_stmt(basic_block_def*,
gimple_stmt_iterator*)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/tree-ssa-sccvn.cc:7240
0x5ab672e68ac5 process_bb
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/tree-ssa-sccvn.cc:8322
0x5ab672e5ce00 do_rpo_vn_1
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/tree-ssa-sccvn.cc:8774
0x5ab672e96d92 execute
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/tree-ssa-sccvn.cc:8935
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.
```
---
```
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/15/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none
OFFLOAD_TARGET_DEFAULT=1
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
01d33f6be28d09edb2e9aaa66feab7a1b359aa60' --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-offload-defaulted
--enable-offload-targets=nvptx-none --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 20241222 (experimental)
cf59bf844037ae952f5058d0fd49e1f4f0cf907e (Gentoo Hardened 15.0.9999 p, commit
01d33f6be28d09edb2e9aaa66feab7a1b359aa60)
```
