https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113057
Bug ID: 113057 Summary: Segmentation fault in dwarf2out.cc:941 with -O -fno-dwarf2-cfi-asm Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: debug Assignee: unassigned at gcc dot gnu.org Reporter: iamanonymous.cs at gmail dot com Target Milestone: --- Compiler Explorer: https://godbolt.org/z/4ndYafjnT ******************************************************************************* OS and Platform: $ uname -a: Linux ubuntu 4.15.0-213-generic #224-Ubuntu SMP Mon Jun 19 13:30:12 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux ******************************************************************************* gcc version: $ gcc -v Using built-in specs. COLLECT_GCC=/root/gcc_set/202311291030/bin/gcc COLLECT_LTO_WRAPPER=/root/gcc_set/202311291030/libexec/gcc/x86_64-pc-linux-gnu/14.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: ../gcc/configure --prefix=/root/gcc_set/202311291030 --with-gmp=/root/build_essential --with-mpfr=/root/build_essential --with-mpc=/root/build_essential --enable-languages=c,c++ --disable-multilib --with-sanitizer=address,undefined,thread,leak Thread model: posix Supported LTO compression algorithms: zlib gcc version 14.0.0 20231129 (experimental) (GCC) git version: 99fa0bfd63d97825c4221dcd3123940f1d0e6291 ******************************************************************************* Program: $ cat mutant.c int __RTL (startwith ("final")) a () { (function "" ) } ******************************************************************************* Command Lines: $ gcc -O -fno-dwarf2-cfi-asm mutant.c mutant.c:3:1: internal compiler error: Segmentation fault 3 | } | ^ 0x101491f crash_signal ../../gcc/gcc/toplev.cc:316 0xb6efb7 vec<dw_cfi_node*, va_gc, vl_embed>::iterate(unsigned int, dw_cfi_node**) const ../../gcc/gcc/vec.h:951 0xb6efb7 output_call_frame_info ../../gcc/gcc/dwarf2out.cc:941 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions.