http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59265
--- Comment #6 from Markus Trippelsdorf <octoploid at yandex dot com> ---
It now segfaults in ipa_profile_generate_summary:
==9510==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000028 (pc
0x00000120aff0 sp 0x7fff4fe6add0 bp 0x606000210080 T0)
#0 0x120afef in ipa_profile_generate_summary()
/var/tmp/gcc_build_dir/gcc/../../gcc/gcc/ipa-profile.c:216
#1 0x142d44f in execute_ipa_summary_passes(ipa_opt_pass_d*)
/var/tmp/gcc_build_dir/gcc/../../gcc/gcc/passes.c:2013
#2 0xd6bbbe in ipa_passes
/var/tmp/gcc_build_dir/gcc/../../gcc/gcc/cgraphunit.c:2022
#3 0xd6bbbe in compile()
/var/tmp/gcc_build_dir/gcc/../../gcc/gcc/cgraphunit.c:2126
#4 0xd6c62a in finalize_compilation_unit()
/var/tmp/gcc_build_dir/gcc/../../gcc/gcc/cgraphunit.c:2280
#5 0x81a98a in cp_write_global_declarations()
/var/tmp/gcc_build_dir/gcc/../../gcc/gcc/cp/decl2.c:4431
#6 0x1613bd4 in compile_file()
/var/tmp/gcc_build_dir/gcc/../../gcc/gcc/toplev.c:561
#7 0x1618663 in do_compile
/var/tmp/gcc_build_dir/gcc/../../gcc/gcc/toplev.c:1893
#8 0x1618663 in toplev_main(int, char**)
/var/tmp/gcc_build_dir/gcc/../../gcc/gcc/toplev.c:1969
#9 0x7f764d115f8f in __libc_start_main (/lib/libc.so.6+0x1ff8f)
#10 0x5b46b0 in _start
(/var/tmp/gcc_sani/usr/local/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/cc1plus+0x5b46b0)
