https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112771
Bug ID: 112771 Summary: during GIMPLE pass: bitintlower0 ICE: in build_bitint_type, at tree.cc:7178 with _BitInt(65535) and division by zero Product: gcc Version: 14.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: middle-end Assignee: unassigned 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 56722 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56722&action=edit reduced testcase $ x86_64-pc-linux-gnu-gcc testcase.c testcase.c: In function 'foo': testcase.c:5:5: warning: division by zero [-Wdiv-by-zero] 5 | a /= 0; | ^~ during GIMPLE pass: bitintlower0 testcase.c:2:1: internal compiler error: in build_bitint_type, at tree.cc:7178 2 | foo (void) | ^~~ 0x891bea build_bitint_type(unsigned long, int) /repo/gcc-trunk/gcc/tree.cc:7178 0x2538b8e handle_operand_addr /repo/gcc-trunk/gcc/gimple-lower-bitint.cc:2185 0x2539407 lower_muldiv_stmt /repo/gcc-trunk/gcc/gimple-lower-bitint.cc:3339 0x254ca76 gimple_lower_bitint /repo/gcc-trunk/gcc/gimple-lower-bitint.cc:6349 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-r14-5974-20231129191907-g259bb7a45a2-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.0/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-r14-5974-20231129191907-g259bb7a45a2-checking-yes-rtl-df-extra-nobootstrap-amd64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.0.0 20231129 (experimental) (GCC)