https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78004
--- Comment #4 from Natanael Copa <ncopa at alpinelinux dot org> --- It seems to be reproducible on 32 bit x86 too with: $ g++ -v Using built-in specs. COLLECT_GCC=g++ COLLECT_LTO_WRAPPER=/usr/libexec/gcc/i586-alpine-linux-musl/6.2.1/lto-wrapper Target: i586-alpine-linux-musl Configured with: /home/ncopa/aports/main/gcc/src/gcc-6.2.0/configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --build=i586-alpine-linux-musl --host=i586-alpine-linux-musl --target=i586-alpine-linux-musl --with-pkgversion='Alpine 6.2.1' --enable-checking=release --disable-fixed-point --disable-libstdcxx-pch --disable-multilib --disable-nls --disable-werror --disable-symvers --enable-__cxa_atexit --enable-default-pie --enable-cloog-backend --enable-languages=c,c++,objc,java,fortran,ada --with-arch=i586 --with-tune=generic --enable-cld --disable-libssp --disable-libmpx --disable-libmudflap --disable-libsanitizer --enable-shared --enable-threads --enable-tls --with-system-zlib --with-linker-hash-style=gnu Thread model: posix gcc version 6.2.1 20160822 (Alpine 6.2.1)