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)
