https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81536
Bug ID: 81536 Summary: Recent crash in is_std_substitution Product: gcc Version: 7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: dcb314 at hotmail dot com Target Milestone: --- Created attachment 41818 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41818&action=edit gzipped C++ source code Somewhere between revision 250462 and revision 250476, there is a new crash: /home/dcb/gcc/results.250462/bin/gcc /home/dcb/gcc/results.250476/bin/gcc bug1.cc:9734:9: internal compiler error: Segmentation fault class exception ^~~~~~~~~ 0xe8239f crash_signal ../../trunk/gcc/toplev.c:338 0x6fbffe is_std_substitution ../../trunk/gcc/cp/mangle.c:500 0x6fbffe find_substitution ../../trunk/gcc/cp/mangle.c:614 0x6f3ce4 write_type ../../trunk/gcc/cp/mangle.c:2074 Please compile the attached source code file with compiler flag -O2.