https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65243
--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to Martin Sebor from comment #4) > I can reproduce the SEGV with the same stack trace with recent trunk. > > Going back in time as far back as commit 8b2ddcd 7 months ago I get: > > lto1: internal compiler error: Segmentation fault > 0x10697533 crash_signal > /build/gcc-65243/trunk/gcc/toplev.c:337 > 0x1053f580 lto_file_decl_data_get_var_decl > /build/gcc-65243/trunk/gcc/lto-streamer.h:1124 > 0x1053f580 lto_input_tree_ref(lto_input_block*, data_in*, function*, > LTO_tags) > /build/gcc-65243/trunk/gcc/lto-streamer-in.c:245 > 0x1053f8a3 lto_input_tree_1(lto_input_block*, data_in*, LTO_tags, unsigned > int) > /build/gcc-65243/trunk/gcc/lto-streamer-in.c:1279 > 0x101b59b3 lto_read_decls > /build/gcc-65243/trunk/gcc/lto/lto.c:1954 > 0x101b7e47 lto_file_finalize > /build/gcc-65243/trunk/gcc/lto/lto.c:2207 > 0x101b7e47 lto_create_files_from_ids > /build/gcc-65243/trunk/gcc/lto/lto.c:2217 > 0x101b7e47 lto_file_read > /build/gcc-65243/trunk/gcc/lto/lto.c:2257 > 0x101b7e47 read_cgraph_and_symbols > /build/gcc-65243/trunk/gcc/lto/lto.c:2960 > 0x101b7e47 lto_main() > /build/gcc-65243/trunk/gcc/lto/lto.c:3414 > > > ...and with commit 757abb4 the month before I get: > > lto1: fatal error: LTO_tags out of range: Range is 0 to 384, value is > 1342177279 > compilation terminated. You can't go back in time with object files only (the IL changes quite often).