https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100413
Bug ID: 100413 Summary: [11/12 Regression] ICE: failed to reclaim unneeded function with custom flags Product: gcc Version: 12.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: ipa Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz CC: marxin at gcc dot gnu.org Target Milestone: --- Host: x86_64-pc-linux-gnu Created attachment 50747 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50747&action=edit auto-reduced testcase (from OpenTTD sources) Compiler output: $ x86_64-pc-linux-gnu-gcc -O2 -fno-guess-branch-probability -fno-inline-functions-called-once -fipa-cp-clone -fipa-pta -fnon-call-exceptions --param=ipa-cp-eval-threshold=0 testcase.C _ZN12_Vector_base13_M_deallocateEv/6 (void _Vector_base::_M_deallocate()) @0x7fb58e54c880 Type: function Body removed by symtab_remove_unreachable_nodes Visibility: externally_visible public weak comdat comdat_group:_ZN12_Vector_base13_M_deallocateEv one_only References: Referring: Availability: not_available Function flags: body Called by: Calls: testcase.C:60:73: internal compiler error: failed to reclaim unneeded function 60 | ClientNetworkContentSocketHandler::ClientNetworkContentSocketHandler() {} | ^ 0xe9f7ce mark_functions_to_output /repo/gcc-trunk/gcc/cgraphunit.c:1651 0xe9f7ce symbol_table::compile() /repo/gcc-trunk/gcc/cgraphunit.c:2321 0xea2007 symbol_table::compile() /repo/gcc-trunk/gcc/cgraphunit.c:2269 0xea2007 symbol_table::finalize_compilation_unit() /repo/gcc-trunk/gcc/cgraphunit.c:2537 Please submit a full bug report, with preprocessed source if appropriate. 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/bin/x86_64-pc-linux-gnu-gcc COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r12-429-20210504051736-g00d8545d705-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/12.0.0/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 --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-r12-429-20210504051736-g00d8545d705-checking-yes-rtl-df-extra-amd64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 12.0.0 20210504 (experimental) (GCC)