https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111574
--- Comment #1 from CTC <19373742 at buaa dot edu.cn> --- ******************************************************************************* OS and Platform: Ubuntu 20.04.4 LTS ******************************************************************************* gcc version: $ gcc -v Using built-in specs. COLLECT_GCC=/home/cuisk/ctc/gcc-releases/gcc-14/bin/gcc COLLECT_LTO_WRAPPER=/home/cuisk/ctc/gcc-releases/gcc-14/libexec/gcc/x86_64-pc-linux-gnu/14.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: ./configure --prefix=/home/cuisk/ctc/gcc-releases/gcc-14 --disable-multilib --enable-language=c,c++ Thread model: posix Supported LTO compression algorithms: zlib gcc version 14.0.0 20230917 (experimental) (GCC) ******************************************************************************* Command Lines: $ gcc -I /home/cuisk/ctc/csmith/include/csmith-2.3.0 -O3 -fno-toplevel-reorder -fno-tree-bit-ccp -fno-tree-dce /home/cuisk/gcc/tmp/a.c -o w 2>ii.out $ ./w Illegal instruction (core dumped) $ gcc -I /home/cuisk/ctc/csmith/include/csmith-2.3.0 /home/cuisk/gcc/tmp/a.c -o w $ ./w checksum = 0
