https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120971
Bug ID: 120971 Summary: ICE on x86_64-linux-gnu: in omp_extract_for_data, at omp-general.cc:423 Product: gcc Version: 16.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: jiangchangwu at smail dot nju.edu.cn Target Milestone: --- Compiler Explorer: https://gcc.godbolt.org/z/Mzb6ss8MK ******************************************************************************* gcc version: Using built-in specs. COLLECT_GCC=gcc-trunk COLLECT_LTO_WRAPPER=/home/software/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/16.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: ../gcc/configure --disable-multilib --disable-bootstrap --enable-languages=c,c++ --prefix=/home/software/gcc-trunk --enable-coverage --disable-werror --enable-checking=yes Thread model: posix Supported LTO compression algorithms: zlib gcc version 16.0.0 20250613 (experimental) (GCC) ******************************************************************************* Program: $ cat mutant.c enum a b; enum a { c, d } e() { #pragma omp for for (b = c; b < d; ++b) ; } ******************************************************************************* Command Lines: $ gcc -fopenmp mutant.c during GIMPLE pass: omplower mutant.c: In function 'e': mutant.c:3:9: internal compiler error: in omp_extract_for_data, at omp-general.cc:423 3 | #pragma omp for | ^~~ 0x5554b38 internal_error(char const*, ...) ../../gcc/gcc/diagnostic-global-context.cc:517 0x54d2d0a fancy_abort(char const*, int, char const*) ../../gcc/gcc/diagnostic.cc:1803 0x1d26ccb omp_extract_for_data(gomp_for*, omp_for_data*, omp_for_data_loop*) ../../gcc/gcc/omp-general.cc:423 0x1da98b8 lower_omp_for ../../gcc/gcc/omp-low.cc:11846 0x1dc5a4b lower_omp_1 ../../gcc/gcc/omp-low.cc:14826 0x1dc7578 lower_omp ../../gcc/gcc/omp-low.cc:15038 0x1dc583e lower_omp_1 ../../gcc/gcc/omp-low.cc:14810 0x1dc7578 lower_omp ../../gcc/gcc/omp-low.cc:15038 0x1dc7925 execute_lower_omp ../../gcc/gcc/omp-low.cc:15077 0x1dc7d4c execute ../../gcc/gcc/omp-low.cc:15131 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.