https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67699
Bug ID: 67699 Summary: Segfault compiling a constexpr array with -fmerge-all-constants -flto Product: gcc Version: 5.2.1 Status: UNCONFIRMED Severity: major Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: gcc at norgg dot org Target Milestone: --- Created attachment 36380 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36380&action=edit Minimal testcase Minimal test case attached, run with: g++ -std=c++11 -fmerge-all-constants -flto gcc_crash.cpp -o gcc_crash.o We've found this is repeatable in: g++ (Ubuntu 4.9.2-0ubuntu1~14.04) 4.9.2 g++ (Ubuntu 5.1.0-0ubuntu11~14.04.1) 5.1.0 g++ 5.2.1 20150825 (Ubuntu 5.2.1-15ubuntu5) g++ (Debian 5.2.1-17) 5.2.1 20150911 g++.exe (i686-posix-dwarf-rev0, Built by MinGW-W64 project) 5.1.0