https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66301
Bug ID: 66301 Summary: internal compiler error when using -fopt-info Product: gcc Version: 5.1.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: t at sharklasers dot com Target Milestone: --- Created attachment 35631 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35631&action=edit preprocessed source $ g++ -O3 -fopt-info-missed-optall test.cpp test.cpp: In member function 'std::ctype<char>::char_type std::ctype<char>::widen(char) const': test.cpp:14:1: internal compiler error: Segmentation fault } ^ 0xaf4caf crash_signal ../../gcc-5.1.0/gcc/toplev.c:383 0x975511 dump_possible_polymorphic_call_targets(_IO_FILE*, tree_node*, long, ipa_polymorphic_call_context const&) ../../gcc-5.1.0/gcc/ipa-devirt.c:3190 0xc09e85 eliminate_dom_walker::before_dom_children(basic_block_def*) ../../gcc-5.1.0/gcc/tree-ssa-pre.c:4394 0xfd8741 dom_walker::walk(basic_block_def*) ../../gcc-5.1.0/gcc/domwalk.c:188 0xc0900b eliminate ../../gcc-5.1.0/gcc/tree-ssa-pre.c:4540 0xc09325 execute ../../gcc-5.1.0/gcc/tree-ssa-pre.c:4978 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions.