https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99689
--- Comment #6 from Soren Soe <gnu at gonsoe dot com> --- I should maybe mention that the same problem is reproducible using qemu-aarch64 and qemu-aarch64-static on an x86_64 host. % aarch64-linux-gnu-g++ -O3 -static bug.cpp % qemu-aarch64-static ./a.out a.out: bug.cpp:78: void bad(): Assertion `m == 3' failed. qemu: uncaught target signal 6 (Aborted) - core dumped Aborted (core dumped) Works fine with -O2 or the size_t variant I mentioned. % aarch64-linux-gnu-g++ -v Using built-in specs. COLLECT_GCC=aarch64-linux-gnu-g++ COLLECT_LTO_WRAPPER=/usr/lib/gcc-cross/aarch64-linux-gnu/9/lto-wrapper Target: aarch64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Ubuntu 9.3.0-17ubuntu1~20.04' --with-bugurl=file:///usr/share/doc/gcc-9/README.Bugs --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,gm2 --prefix=/usr --with-gcc-major-version-only --program-suffix=-9 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-libquadmath --disable-libquadmath-support --enable-plugin --enable-default-pie --with-system-zlib --without-target-system-zlib --enable-libpth-m2 --enable-multiarch --enable-fix-cortex-a53-843419 --disable-werror --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=aarch64-linux-gnu --program-prefix=aarch64-linux-gnu- --includedir=/usr/aarch64-linux-gnu/include Thread model: posix gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)
