https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62026
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2014-08-09 CC| |trippels at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #2 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- Also happens during Firefox libxul link: markus@x4 library % cat minimal /var/tmp/moz-build-dir/toolkit/library/../../dom/ipc/TabChild.o /var/tmp/moz-build-dir/toolkit/library/../../widget/xpwidgets/nsContentProcessWidgetFactory.o /var/tmp/moz-build-dir/toolkit/library/../../widget/xpwidgets/nsIdleService.o /var/tmp/moz-build-dir/toolkit/library/../../widget/xpwidgets/nsScreenManagerProxy.o /var/tmp/moz-build-dir/toolkit/library/../../widget/xpwidgets/nsTransferable.o /var/tmp/moz-build-dir/toolkit/library/../../widget/gtk/nsWidgetFactory.o /var/tmp/moz-build-dir/toolkit/library/../../widget/gtk/nsWindow.o markus@x4 library % c++ -w -flto -pipe -O3 -shared -Wfatal-errors @minimal lto1: internal compiler error: Segmentation fault 0x91a64f crash_signal ../../gcc/gcc/toplev.c:337 0x81df58 lto_get_decl_name_mapping(lto_file_decl_data*, char const*) ../../gcc/gcc/lto-section-in.c:340 0x8174a6 copy_function_or_variable ../../gcc/gcc/lto-streamer-out.c:2162 0x8180f1 lto_output() ../../gcc/gcc/lto-streamer-out.c:2254 0x862601 write_lto ../../gcc/gcc/passes.c:2226 0x865b11 ipa_write_optimization_summaries(lto_symtab_encoder_d*) ../../gcc/gcc/passes.c:2423 0x5424ba do_stream_out ../../gcc/gcc/lto/lto.c:2457 0x544d39 stream_out ../../gcc/gcc/lto/lto.c:2499 0x544d39 lto_wpa_write_files ../../gcc/gcc/lto/lto.c:2636 0x54d24a do_whole_program_analysis ../../gcc/gcc/lto/lto.c:3304 0x54d24a lto_main() ../../gcc/gcc/lto/lto.c:3424 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions. lto-wrapper: fatal error: /var/tmp/gcc_test/usr/local/bin/c++ returned 1 exit status compilation terminated. /usr/bin/ld: fatal error: lto-wrapper failed collect2: error: ld returned 1 exit status The attached testcase doesn't reproduce the issue for me.