https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111540
Bug ID: 111540 Summary: Segmentation fault with '-O3 -fno-dce -fno-tree-dce -fno-tree-sra' Product: gcc Version: 11.4.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: 19373742 at buaa dot edu.cn Target Milestone: --- Created attachment 55967 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55967&action=edit The preprocessed file ******************************************************************************* OS and Platform: Ubuntu 20.04.4 LTS ******************************************************************************* gcc version: $ gcc -v Using built-in specs. COLLECT_GCC=/home/cuisk/ctc/gcc-releases/gcc-11/bin/gcc COLLECT_LTO_WRAPPER=/home/cuisk/ctc/gcc-releases/gcc-11/libexec/gcc/x86_64-pc-linux-gnu/11.4.1/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: ./configure --prefix=/home/cuisk/ctc/gcc-releases/gcc-11 --disable-multilib --enable-language=c,c++ Thread model: posix Supported LTO compression algorithms: zlib gcc version 11.4.1 20230921 (GCC) ******************************************************************************* Command Lines: $ gcc -I /home/csmith/include/csmith-2.3.0 -O3 -fno-dce -fno-tree-dce -fno-tree-sra a.c -o tmp $ ./tmp Segmentation fault (core dumped)