https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113410
Bug ID: 113410 Summary: ICE: in maybe_check_access_sizes, at gimple-ssa-warn-access.cc:3423 with _BitInt() used as array length Product: gcc Version: 14.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz CC: jakub at gcc dot gnu.org Target Milestone: --- Host: x86_64-pc-linux-gnu Target: x86_64-pc-linux-gnu Created attachment 57096 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57096&action=edit reduced testcase This is reduced from gcc.dg/builtin-dynamic-object-size-20.c, when testsuite is run with -Dint=_BitInt($RANDOM) Compiler output: $ x86_64-pc-linux-gnu-gcc testcase.c during GIMPLE pass: waccess testcase.c: In function 'foo': testcase.c:4:1: internal compiler error: in maybe_check_access_sizes, at gimple-ssa-warn-access.cc:3423 4 | foo (int n) | ^~~ 0x783992 maybe_check_access_sizes /repo/gcc-trunk/gcc/gimple-ssa-warn-access.cc:3423 0x1186c57 check_call_access /repo/gcc-trunk/gcc/gimple-ssa-warn-access.cc:3644 0x1186c57 check_call /repo/gcc-trunk/gcc/gimple-ssa-warn-access.cc:4351 0x1186c57 check_block /repo/gcc-trunk/gcc/gimple-ssa-warn-access.cc:4434 0x1186c57 execute /repo/gcc-trunk/gcc/gimple-ssa-warn-access.cc:4769 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-r14-7255-20240115165927-g6c703b4eb68-checking-yes-rtl-df-extra-nobootstrap-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 --disable-bootstrap --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-r14-7255-20240115165927-g6c703b4eb68-checking-yes-rtl-df-extra-nobootstrap-amd64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.0.1 20240115 (experimental) (GCC)