https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114472
Bug ID: 114472 Summary: [14 Regression] ICE: in falls_short_of_p, at analyzer/store.cc:365 (in exceeds_p, at analyzer/store.cc:342) with -fanalyzer 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 57813 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57813&action=edit reduced testcase Compiler output: $ x86_64-pc-linux-gnu-gcc -fanalyzer testcase.c during IPA pass: analyzer testcase.c: In function 'bar': testcase.c:13:3: internal compiler error: in falls_short_of_p, at analyzer/store.cc:365 13 | __builtin_strncpy(&d, &s - 3, -1); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 0x8ca06b ana::bit_range::falls_short_of_p(generic_wide_int<fixed_wide_int_storage<128> >, ana::bit_range*) const /repo/gcc-trunk/gcc/analyzer/store.cc:365 0x28c0d6e ana::region_model::check_region_bounds(ana::region const*, ana::access_direction, ana::svalue const*, ana::region_model_context*) const /repo/gcc-trunk/gcc/analyzer/bounds-checking.cc:1438 0x19622b9 ana::region_model::check_region_access(ana::region const*, ana::access_direction, ana::svalue const*, ana::region_model_context*) const /repo/gcc-trunk/gcc/analyzer/region-model.cc:3095 0x19622b9 ana::region_model::check_region_access(ana::region const*, ana::access_direction, ana::svalue const*, ana::region_model_context*) const /repo/gcc-trunk/gcc/analyzer/region-model.cc:3084 0x19622b9 ana::region_model::check_region_for_read(ana::region const*, ana::region_model_context*) const /repo/gcc-trunk/gcc/analyzer/region-model.cc:3129 0x19622b9 ana::region_model::check_region_for_read(ana::region const*, ana::region_model_context*) const /repo/gcc-trunk/gcc/analyzer/region-model.cc:3126 0x19622b9 ana::region_model::get_store_value(ana::region const*, ana::region_model_context*) const /repo/gcc-trunk/gcc/analyzer/region-model.cc:2690 0x19688d2 ana::region_model::get_store_value(ana::region const*, ana::region_model_context*) const /repo/gcc-trunk/gcc/analyzer/region-model.cc:2686 0x19688d2 ana::region_model::read_bytes(ana::region const*, tree_node*, ana::svalue const*, ana::region_model_context*) const /repo/gcc-trunk/gcc/analyzer/region-model.cc:4462 0x19688d2 ana::region_model::read_bytes(ana::region const*, tree_node*, ana::svalue const*, ana::region_model_context*) const /repo/gcc-trunk/gcc/analyzer/region-model.cc:4453 0x1945a2a update_model /repo/gcc-trunk/gcc/analyzer/kf.cc:1609 0x193397a ana::exploded_graph::process_node(ana::exploded_node*) /repo/gcc-trunk/gcc/analyzer/engine.cc:4241 0x193442a ana::exploded_graph::process_worklist() /repo/gcc-trunk/gcc/analyzer/engine.cc:3516 0x1936b9b ana::impl_run_checkers(ana::logger*) /repo/gcc-trunk/gcc/analyzer/engine.cc:6210 0x1937b66 ana::run_checkers() /repo/gcc-trunk/gcc/analyzer/engine.cc:6308 0x1926458 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-r14-9652-20240325121350-gcf3fc6f414f-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 --enable-libsanitizer --disable-libstdcxx-pch --prefix=/repo/gcc-trunk//binary-trunk-r14-9652-20240325121350-gcf3fc6f414f-checking-yes-rtl-df-extra-amd64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.0.1 20240325 (experimental) (GCC)