https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96394
--- Comment #3 from Sergei Trofimovich <slyfox at gcc dot gnu.org> --- Created attachment 48967 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48967&action=edit gcc-tauthon-734006-PR96394.tar.gz gcc-tauthon-734006-PR96394.tar.gz is seemingly self-contained example. It contains preprocessed file, .gcda file and a gcc command (with absolute path to gcc). GCC is built as: $ :/home/slyfox/dev/git/gcc-10-build/gcc/xgcc -B/home/slyfox/dev/git/gcc-10-build/gcc -v Reading specs from /home/slyfox/dev/git/gcc-10-build/gcc/specs COLLECT_GCC=/home/slyfox/dev/git/gcc-10-build/gcc/xgcc COLLECT_LTO_WRAPPER=/home/slyfox/dev/git/gcc-10-build/gcc/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: ../gcc-10/configure --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu --enable-languages=c,c++ --disable-bootstrap --with-multilib-list=m64 --prefix=/home/slyfox/dev/git/gcc-10-build/../gcc-native-quick-installed --disable-nls --without-isl --disable-libsanitizer --disable-libvtv --disable-libgomp --disable-libstdcxx-pch --disable-libunwind-exceptions CFLAGS='-O0 -ggdb3 ' CXXFLAGS='-O0 -ggdb3 ' --with-sysroot=/usr/x86_64-HEAD-linux-gnu Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 10.2.1 20200729 (GCC)