https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118852
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> --- The actual error is ./cpugcc_r_peak.gcc7-m64 200.c -O3 -finline-limit=50000 -o 200.opts-O3_-finline-limit_50000.s 200.c: In function 'subre_': 200.c:45552:7: benchmark internal error: in ?, at tree-ssa-pre.c:2986 The 502.gcc_r benchmark binary 'cpugcc_r' has encountered an internal error. It is possible that there is an error in the benchmark 502.gcc_r sometimes 200.c: In function 'ety2_': 200.c:16480:7: benchmark internal error: in ?, at fold-const.c:2677 The 502.gcc_r benchmark binary 'cpugcc_r' has encountered an internal error. It is possible that there is an error in the benchmark 502.gcc_r or 200.c: In function 'subre_': 200.c:45552:7: benchmark internal error: in ?, at tree-ssa-pre.c:2986 The 502.gcc_r benchmark binary 'cpugcc_r' has encountered an internal error. It is possible that there is an error in the benchmark 502.gcc_r source code, but it is more likely that your compiler or sometimes it works.