https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88679
--- Comment #2 from Daniel Fruzynski <bugzi...@poradnik-webmastera.com> --- I used compiler at https://godbolt.org/. Here are outputs for both commands: $ gcc -v Using built-in specs. COLLECT_GCC=/opt/compiler-explorer/gcc-snapshot/bin/g++ Target: x86_64-linux-gnu Configured with: ../gcc-trunk-20190103/configure --prefix=/opt/compiler-explorer/gcc-build/staging --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu --disable-bootstrap --enable-multiarch --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --enable-clocale=gnu --enable-languages=c,c++,fortran --enable-ld=yes --enable-gold=yes --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-linker-build-id --enable-lto --enable-plugins --enable-threads=posix --with-pkgversion=GCC-Explorer-Build Thread model: posix gcc version 9.0.0 20190102 (experimental) (GCC-Explorer-Build) COLLECT_GCC_OPTIONS='-fdiagnostics-color=always' '-g' '-o' '/tmp/compiler-explorer-compiler11903-60-1nshruf.qczq/output.s' '-masm=intel' '-S' '-v' '-shared-libgcc' '-mtune=generic' '-march=x86-64' /opt/compiler-explorer/gcc-trunk-20190103/bin/../libexec/gcc/x86_64-linux-gnu/9.0.0/cc1plus -quiet -v -imultiarch x86_64-linux-gnu -iprefix /opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/ -D_GNU_SOURCE <source> -quiet -dumpbase example.cpp -masm=intel -mtune=generic -march=x86-64 -auxbase-strip /tmp/compiler-explorer-compiler11903-60-1nshruf.qczq/output.s -g -version -fdiagnostics-color=always -o /tmp/compiler-explorer-compiler11903-60-1nshruf.qczq/output.s GNU C++14 (GCC-Explorer-Build) version 9.0.0 20190102 (experimental) (x86_64-linux-gnu) compiled by GNU C version 7.3.0, GMP version 6.1.0, MPFR version 3.1.4, MPC version 1.0.3, isl version isl-0.18-GMP GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 ignoring nonexistent directory "/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../x86_64-linux-gnu/include" ignoring duplicate directory "/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/../../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../include/c++/9.0.0" ignoring duplicate directory "/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/../../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../include/c++/9.0.0/x86_64-linux-gnu" ignoring duplicate directory "/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/../../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../include/c++/9.0.0/backward" ignoring duplicate directory "/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/../../lib/gcc/x86_64-linux-gnu/9.0.0/include" ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu" ignoring duplicate directory "/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/../../lib/gcc/x86_64-linux-gnu/9.0.0/include-fixed" ignoring nonexistent directory "/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/../../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../x86_64-linux-gnu/include" #include "..." search starts here: #include <...> search starts here: /opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../include/c++/9.0.0 /opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../include/c++/9.0.0/x86_64-linux-gnu /opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../include/c++/9.0.0/backward /opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/include /opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/include-fixed /usr/local/include /opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/../../include /usr/include/x86_64-linux-gnu /usr/include End of search list. GNU C++14 (GCC-Explorer-Build) version 9.0.0 20190102 (experimental) (x86_64-linux-gnu) compiled by GNU C version 7.3.0, GMP version 6.1.0, MPFR version 3.1.4, MPC version 1.0.3, isl version isl-0.18-GMP GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 Compiler executable checksum: f724e483fb841047a948ffa41ca3218a COMPILER_PATH=/opt/compiler-explorer/gcc-trunk-20190103/bin/../libexec/gcc/x86_64-linux-gnu/9.0.0/:/opt/compiler-explorer/gcc-trunk-20190103/bin/../libexec/gcc/x86_64-linux-gnu/:/opt/compiler-explorer/gcc-trunk-20190103/bin/../libexec/gcc/:/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../x86_64-linux-gnu/bin/ LIBRARY_PATH=/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/:/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/:/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/:/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../lib64/:/lib/x86_64-linux-gnu/:/lib/../lib64/:/usr/lib/x86_64-linux-gnu/:/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../x86_64-linux-gnu/lib/:/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/../../../:/lib/:/usr/lib/ COLLECT_GCC_OPTIONS='-fdiagnostics-color=always' '-g' '-o' '/tmp/compiler-explorer-compiler11903-60-1nshruf.qczq/output.s' '-masm=intel' '-S' '-v' '-shared-libgcc' '-mtune=generic' '-march=x86-64' Compiler returned: 0 ------------------------------------------- $ gcc -v -m32 .... -S Using built-in specs. COLLECT_GCC=/opt/compiler-explorer/gcc-snapshot/bin/g++ Target: x86_64-linux-gnu Configured with: ../gcc-trunk-20190103/configure --prefix=/opt/compiler-explorer/gcc-build/staging --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu --disable-bootstrap --enable-multiarch --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --enable-clocale=gnu --enable-languages=c,c++,fortran --enable-ld=yes --enable-gold=yes --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-linker-build-id --enable-lto --enable-plugins --enable-threads=posix --with-pkgversion=GCC-Explorer-Build Thread model: posix gcc version 9.0.0 20190102 (experimental) (GCC-Explorer-Build) COLLECT_GCC_OPTIONS='-fdiagnostics-color=always' '-g' '-o' '/tmp/compiler-explorer-compiler11903-60-7jj20d.uacxt/output.s' '-masm=intel' '-S' '-v' '-m32' '-S' '-shared-libgcc' '-mtune=generic' '-march=x86-64' /opt/compiler-explorer/gcc-trunk-20190103/bin/../libexec/gcc/x86_64-linux-gnu/9.0.0/cc1plus -quiet -v -imultilib 32 -imultiarch i386-linux-gnu -iprefix /opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/ -D_GNU_SOURCE <source> -quiet -dumpbase example.cpp -masm=intel -m32 -mtune=generic -march=x86-64 -auxbase-strip /tmp/compiler-explorer-compiler11903-60-7jj20d.uacxt/output.s -g -version -fdiagnostics-color=always -o /tmp/compiler-explorer-compiler11903-60-7jj20d.uacxt/output.s GNU C++14 (GCC-Explorer-Build) version 9.0.0 20190102 (experimental) (x86_64-linux-gnu) compiled by GNU C version 7.3.0, GMP version 6.1.0, MPFR version 3.1.4, MPC version 1.0.3, isl version isl-0.18-GMP GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 ignoring nonexistent directory "/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../x86_64-linux-gnu/include" ignoring duplicate directory "/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/../../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../include/c++/9.0.0" ignoring duplicate directory "/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/../../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../include/c++/9.0.0/x86_64-linux-gnu/32" ignoring duplicate directory "/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/../../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../include/c++/9.0.0/backward" ignoring duplicate directory "/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/../../lib/gcc/x86_64-linux-gnu/9.0.0/include" ignoring nonexistent directory "/usr/local/include/i386-linux-gnu" ignoring duplicate directory "/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/../../lib/gcc/x86_64-linux-gnu/9.0.0/include-fixed" ignoring nonexistent directory "/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/../../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../x86_64-linux-gnu/include" ignoring nonexistent directory "/usr/include/i386-linux-gnu" #include "..." search starts here: #include <...> search starts here: /opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../include/c++/9.0.0 /opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../include/c++/9.0.0/x86_64-linux-gnu/32 /opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../include/c++/9.0.0/backward /opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/include /opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/include-fixed /usr/local/include /opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/../../include /usr/include End of search list. GNU C++14 (GCC-Explorer-Build) version 9.0.0 20190102 (experimental) (x86_64-linux-gnu) compiled by GNU C version 7.3.0, GMP version 6.1.0, MPFR version 3.1.4, MPC version 1.0.3, isl version isl-0.18-GMP GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 Compiler executable checksum: f724e483fb841047a948ffa41ca3218a COMPILER_PATH=/opt/compiler-explorer/gcc-trunk-20190103/bin/../libexec/gcc/x86_64-linux-gnu/9.0.0/:/opt/compiler-explorer/gcc-trunk-20190103/bin/../libexec/gcc/:/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../x86_64-linux-gnu/bin/ LIBRARY_PATH=/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/32/:/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../lib32/:/lib/i386-linux-gnu/:/lib/../lib32/:/usr/lib/i386-linux-gnu/:/usr/lib/../lib32/:/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/:/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/:/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/../../../../x86_64-linux-gnu/lib/:/opt/compiler-explorer/gcc-trunk-20190103/bin/../lib/gcc/x86_64-linux-gnu/9.0.0/../../../:/lib/i386-linux-gnu/:/lib/:/usr/lib/i386-linux-gnu/:/usr/lib/ COLLECT_GCC_OPTIONS='-fdiagnostics-color=always' '-g' '-o' '/tmp/compiler-explorer-compiler11903-60-7jj20d.uacxt/output.s' '-masm=intel' '-S' '-v' '-m32' '-S' '-shared-libgcc' '-mtune=generic' '-march=x86-64' Compiler returned: 0
