In the case when enabled -flto=N GCC aborted compilation.
The reason is the overflowing streamer_mode_table buffer.
It has 1 << 8 bytes but lto_output_init_mode_table() tries to fill
with MAX_MACHINE_MODE bytes.

gcc/ChangeLog:
       * tree-streamer.h (streamer_mode_table): Changed buffer size
       * tree-streamer.cc (streamer_mode_table): Likewise.


-- 
With the best regards
Jivan Hakobyan