https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84745
David Malcolm <dmalcolm at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P3 |P4 Status|UNCONFIRMED |NEW Last reconfirmed| |2018-03-07 CC| |dmalcolm at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from David Malcolm <dmalcolm at gcc dot gnu.org> --- Confirmed with trunk, gcc7 and gcc 6, and all the way back to at least 4.8.3 (using -std=c++11). Program received signal SIGSEGV, Segmentation fault. main_block_label (label=label@entry=0x7ffff18d5100) at ../../src/gcc/tree-cfg.c:1496 1496 tree main_label = label_for_bb[bb->index].label; (gdb) p bb $1 = <basic_block 0x0>