https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112907
Bug ID: 112907
Summary: [14 regression] ICE when building Botan
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: sjames at gcc dot gnu.org
Target Milestone: ---
Created attachment 56828
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56828&action=edit
compat_sodium_salsa.ii
This started in the last 2-3 days, I think. r14-6096-g4c0dc30099d39eis OK, but
r14-6238-gae9e48e5c0acae fails.
(Sorry, this machine lacked debugging symbols, which I'll rectify now.)
```
# x86_64-pc-linux-gnu-g++ -fPIC -fvisibility=hidden -fstack-protector -m64
-pthread -std=c++20 -D_REENTRANT -O2 -pipe -march=native
-fdiagnostics-color=always -DBOTAN_IS_BEING_BUILT -Wall -Wextra -Wpedantic
Wstrict-aliasing -Wcast-align -Wmissing-declarations -Wpointer-arith
-Wcast-qual -Wzero-as-null-pointer-constant -Wnon-virtual-dtor -Wold-style-cast
-Wsuggest-override -Wshadow -Wextra-semi -I build/include -isystem
build/include/external -c src/lib/compat/sodium/sodium_salsa.cpp -o
build/obj/lib/compat_sodium_salsa.o
In file included from src/lib/compat/sodium/sodium_salsa.cpp:9:
build/include/botan/internal/loadstor.h: In function ‘constexpr T
Botan::load_le(const uint8_t*, std::size_t) [with T = unsigned int]’:
build/include/botan/internal/loadstor.h:182:16: internal compiler error: in
gimplify_expr, at gimplify.cc:17535
182 | in += off * sizeof(uint32_t);
| ^~~~~~~~~~~~~~~~
0x55bff1745e1c internal_error(char const*, ...)
???:0
0x55bff1745fb4 fancy_abort(char const*, int, char const*)
???:0
0x55bff197abed gimplify_expr(tree_node**, gimple**, gimple**, bool
(*)(tree_node*), int)
???:0
0x55bff197ba8f gimplify_expr(tree_node**, gimple**, gimple**, bool
(*)(tree_node*), int)
???:0
0x55bff197ad0a gimplify_expr(tree_node**, gimple**, gimple**, bool
(*)(tree_node*), int)
???:0
0x55bff1978d1c gimplify_stmt(tree_node**, gimple**)
???:0
0x55bff197b9e4 gimplify_expr(tree_node**, gimple**, gimple**, bool
(*)(tree_node*), int)
???:0
0x55bff197baf9 gimplify_expr(tree_node**, gimple**, gimple**, bool
(*)(tree_node*), int)
???:0
0x55bff1978d1c gimplify_stmt(tree_node**, gimple**)
???:0
0x55bff1965634 gimplify_body(tree_node*, bool)
???:0
0x55bff19650f9 gimplify_function_tree(tree_node*)
???:0
0x55bff1963778 cgraph_node::analyze()
???:0
0x55bff1fcd20d symbol_table::finalize_compilation_unit()
???:0
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/14/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-14.0.0.9999/work/gcc-14.0.0.9999/configure
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/14
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/14/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/14
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/14/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/14/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/14/include/g++-v14
--disable-silent-rules --disable-dependency-tracking
--with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/14/python
--enable-languages=c,c++,fortran --enable-obsolete --enable-secureplt
--disable-werror --with-system-zlib --enable-nls --without-included-gettext
--disable-libunwind-exceptions --enable-checking=yes,extra,rtl,df
--with-bugurl=https://bugs.gentoo.org/ --with-pkgversion='Gentoo 14.0.0 p,
commit 185baffd2265d79d52d9c42050ecdf9239195923' --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 --disable-valgrind-annotations
--disable-vtable-verify --disable-libvtv --with-zstd --without-isl
--enable-default-pie --enable-host-pie --disable-host-bind-now
--enable-default-ssp --with-build-config=bootstrap-lto
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.0 20231207 (experimental)
ae9e48e5c0acaecf181117bdf3632b6eabf907ec (Gentoo 14.0.0 p, commit
185baffd2265d79d52d9c42050ecdf9239195923)
```
I can reproduce with just 'g++ -c compat_sodium_salsa.ii -march=znver2
-std=c++20'.
