https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120201
--- Comment #2 from Stuart <stuart.a.hayhurst at gmail dot com> ---
Sure, sorry if the bug report was a little slapdash, my dinner was ready to
come out of the oven :)
g++ test.cpp -O3 -march=native -fsanitize=address -std=c++23 -g -v:
```
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-linux-gnu/14/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none:amdgcn-amdhsa
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 14.2.0-19'
--with-bugurl=file:///usr/share/doc/gcc-14/README.Bugs
--enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2,rust --prefix=/usr
--with-gcc-major-version-only --program-suffix=-14
--program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id
--libexecdir=/usr/libexec --without-included-gettext --enable-threads=posix
--libdir=/usr/lib --enable-nls --enable-bootstrap --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-libstdcxx-backtrace
--enable-gnu-unique-object --disable-vtable-verify --enable-plugin
--enable-default-pie --with-system-zlib --enable-libphobos-checking=release
--with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch
--disable-werror --enable-cet --with-arch-32=i686 --with-abi=m64
--with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic
--enable-offload-targets=nvptx-none=/build/reproducible-path/gcc-14-14.2.0/debian/tmp-nvptx/usr,amdgcn-amdhsa=/build/reproducible-path/gcc-14-14.2.0/debian/tmp-gcn/usr
--enable-offload-defaulted --without-cuda-driver --enable-checking=release
--build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
--with-build-config=bootstrap-lto-lean --enable-link-serialization=3
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.2.0 (Debian 14.2.0-19)
COLLECT_GCC_OPTIONS='-O3' '-march=native' '-fsanitize=address' '-std=c++23'
'-g' '-v' '-foffload-options=-l_GCC_m' '-shared-libgcc' '-dumpdir' 'a-'
/usr/libexec/gcc/x86_64-linux-gnu/14/cc1plus -quiet -v -imultiarch
x86_64-linux-gnu -D_GNU_SOURCE test.cpp -march=znver4 -mmmx -mpopcnt -msse
-msse2 -msse3 -mssse3 -msse4.1 -msse4.2 -mavx -mavx2 -msse4a -mno-fma4 -mno-xop
-mfma -mavx512f -mbmi -mbmi2 -maes -mpclmul -mavx512vl -mavx512bw -mavx512dq
-mavx512cd -mavx512vbmi -mavx512ifma -mavx512vpopcntdq -mavx512vbmi2 -mgfni
-mvpclmulqdq -mavx512vnni -mavx512bitalg -mavx512bf16 -mno-avx512vp2intersect
-mno-3dnow -madx -mabm -mno-cldemote -mclflushopt -mclwb -mclzero -mcx16
-mno-enqcmd -mf16c -mfsgsbase -mfxsr -mno-hle -msahf -mno-lwp -mlzcnt -mmovbe
-mno-movdir64b -mno-movdiri -mmwaitx -mno-pconfig -mpku -mprfchw -mno-ptwrite
-mrdpid -mrdrnd -mrdseed -mno-rtm -mno-serialize -mno-sgx -msha -mshstk
-mno-tbm -mno-tsxldtrk -mvaes -mno-waitpkg -mwbnoinvd -mxsave -mxsavec
-mxsaveopt -mxsaves -mno-amx-tile -mno-amx-int8 -mno-amx-bf16 -mno-uintr
-mno-hreset -mno-kl -mno-widekl -mno-avxvnni -mno-avx512fp16 -mno-avxifma
-mno-avxvnniint8 -mno-avxneconvert -mno-cmpccxadd -mno-amx-fp16 -mno-prefetchi
-mno-raoint -mno-amx-complex -mno-avxvnniint16 -mno-sm3 -mno-sha512 -mno-sm4
-mno-apxf -mno-usermsr --param l1-cache-size=32 --param l1-cache-line-size=64
--param l2-cache-size=1024 -mtune=znver4 -quiet -dumpdir a- -dumpbase test.cpp
-dumpbase-ext .cpp -g -O3 -std=c++23 -version -fsanitize=address
-foffload-options=-l_GCC_m -fasynchronous-unwind-tables -o /tmp/ccz9XEbY.s
GNU C++23 (Debian 14.2.0-19) version 14.2.0 (x86_64-linux-gnu)
compiled by GNU C version 14.2.0, GMP version 6.3.0, MPFR version
4.2.1, MPC version 1.3.1, isl version isl-0.27-GMP
warning: MPFR header version 4.2.1 differs from library version 4.2.2.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring duplicate directory "/usr/include/x86_64-linux-gnu/c++/14"
ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu"
ignoring nonexistent directory
"/usr/lib/gcc/x86_64-linux-gnu/14/include-fixed/x86_64-linux-gnu"
ignoring nonexistent directory "/usr/lib/gcc/x86_64-linux-gnu/14/include-fixed"
ignoring nonexistent directory
"/usr/lib/gcc/x86_64-linux-gnu/14/../../../../x86_64-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/include/c++/14
/usr/include/x86_64-linux-gnu/c++/14
/usr/include/c++/14/backward
/usr/lib/gcc/x86_64-linux-gnu/14/include
/usr/local/include
/usr/include/x86_64-linux-gnu
/usr/include
End of search list.
Compiler executable checksum: a0e1d70a4b6c50c7ed1b3d36dfd3f9a4
COLLECT_GCC_OPTIONS='-O3' '-march=native' '-fsanitize=address' '-std=c++23'
'-g' '-v' '-foffload-options=-l_GCC_m' '-shared-libgcc' '-dumpdir' 'a-'
as -v --gdwarf-5 --64 -o /tmp/ccWB8VmV.o /tmp/ccz9XEbY.s
GNU assembler version 2.44 (x86_64-linux-gnu) using BFD version (GNU Binutils
for Debian) 2.44
COMPILER_PATH=/usr/libexec/gcc/x86_64-linux-gnu/14/:/usr/libexec/gcc/x86_64-linux-gnu/14/:/usr/libexec/gcc/x86_64-linux-gnu/:/usr/lib/gcc/x86_64-linux-gnu/14/:/usr/lib/gcc/x86_64-linux-gnu/
LIBRARY_PATH=/usr/lib/gcc/x86_64-linux-gnu/14/:/usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/:/usr/lib/gcc/x86_64-linux-gnu/14/../../../../lib/:/lib/x86_64-linux-gnu/:/lib/../lib/:/usr/lib/x86_64-linux-gnu/:/usr/lib/../lib/:/usr/lib/gcc/x86_64-linux-gnu/14/../../../:/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-O3' '-march=native' '-fsanitize=address' '-std=c++23'
'-g' '-v' '-foffload-options=-l_GCC_m' '-shared-libgcc' '-dumpdir' 'a.'
/usr/libexec/gcc/x86_64-linux-gnu/14/collect2 -plugin
/usr/libexec/gcc/x86_64-linux-gnu/14/liblto_plugin.so
-plugin-opt=/usr/libexec/gcc/x86_64-linux-gnu/14/lto-wrapper
-plugin-opt=-fresolution=/tmp/ccjuE7kS.res -plugin-opt=-pass-through=-lgcc_s
-plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lc
-plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lgcc --build-id
--eh-frame-hdr -m elf_x86_64 --hash-style=gnu -dynamic-linker
/lib64/ld-linux-x86-64.so.2 -pie
/usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o
/usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/crti.o
/usr/lib/gcc/x86_64-linux-gnu/14/crtbeginS.o -L/usr/lib/gcc/x86_64-linux-gnu/14
-L/usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu
-L/usr/lib/gcc/x86_64-linux-gnu/14/../../../../lib -L/lib/x86_64-linux-gnu
-L/lib/../lib -L/usr/lib/x86_64-linux-gnu -L/usr/lib/../lib
-L/usr/lib/gcc/x86_64-linux-gnu/14/../../..
/usr/lib/gcc/x86_64-linux-gnu/14/libasan_preinit.o --push-state --no-as-needed
-lasan --pop-state /tmp/ccWB8VmV.o -lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s -lgcc
/usr/lib/gcc/x86_64-linux-gnu/14/crtendS.o
/usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/crtn.o
COLLECT_GCC_OPTIONS='-O3' '-march=native' '-fsanitize=address' '-std=c++23'
'-g' '-v' '-foffload-options=-l_GCC_m' '-shared-libgcc' '-dumpdir' 'a.'
```
