https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113998
Bug ID: 113998 Summary: [14 Regression] ICE: in get_last_byte_offset, at analyzer/ranges.cc:171 with -fanalyzer and __builtin_strncpy() Product: gcc Version: 14.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: analyzer Assignee: dmalcolm at gcc dot gnu.org Reporter: zsojka at seznam dot cz Target Milestone: --- Host: x86_64-pc-linux-gnu Target: x86_64-pc-linux-gnu Created attachment 57463 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57463&action=edit reduced testcase Compiler output: $ x86_64-pc-linux-gnu-gcc -fanalyzer testcase.c during IPA pass: analyzer testcase.c: In function 'main': testcase.c:7:3: internal compiler error: in get_last_byte_offset, at analyzer/ranges.cc:171 7 | __builtin_strncpy (a, a, n); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ 0xdd3983 ana::symbolic_byte_range::get_last_byte_offset(ana::region_model_manager&) const /repo/gcc-trunk/gcc/analyzer/ranges.cc:171 0x29727b7 ana::symbolic_byte_range::intersection(ana::symbolic_byte_range const&, ana::region_model const&) const /repo/gcc-trunk/gcc/analyzer/ranges.cc:202 0x2948321 ana::call_details::complain_about_overlap(unsigned int, unsigned int, ana::svalue const*) const /repo/gcc-trunk/gcc/analyzer/call-details.cc:517 0x194238f update_model /repo/gcc-trunk/gcc/analyzer/kf.cc:1545 0x193038a ana::exploded_graph::process_node(ana::exploded_node*) /repo/gcc-trunk/gcc/analyzer/engine.cc:4240 0x1930e3a ana::exploded_graph::process_worklist() /repo/gcc-trunk/gcc/analyzer/engine.cc:3515 0x19335a3 ana::impl_run_checkers(ana::logger*) /repo/gcc-trunk/gcc/analyzer/engine.cc:6209 0x19344b6 ana::run_checkers() /repo/gcc-trunk/gcc/analyzer/engine.cc:6300 0x1922e58 execute /repo/gcc-trunk/gcc/analyzer/analyzer-pass.cc:87 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. $ x86_64-pc-linux-gnu-gcc -v Using built-in specs. COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r14-9062-20240219114159-geb17bdc211a-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.1/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++ --enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra --with-cloog --with-ppl --with-isl --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu --with-ld=/usr/bin/x86_64-pc-linux-gnu-ld --with-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch --prefix=/repo/gcc-trunk//binary-trunk-r14-9062-20240219114159-geb17bdc211a-checking-yes-rtl-df-extra-amd64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.0.1 20240219 (experimental) (GCC)