[Bug ipa/64298] New: [5 Regression] ICE: Segmentation fault in get_binfo_at_offset at tree.c:11914

[danglin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64298

            Bug ID: 64298
           Summary: [5 Regression] ICE: Segmentation fault in
                    get_binfo_at_offset at tree.c:11914
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: danglin at gcc dot gnu.org
              Host: hppa-unknown-linux-gnu
            Target: hppa-unknown-linux-gnu
             Build: hppa-unknown-linux-gnu

In r218651, the following ICE occurs:

spawn /home/dave/gnu/gcc/objdir/gcc/testsuite/g++/../../xg++
-B/home/dave/gnu/gc
c/objdir/gcc/testsuite/g++/../../
/home/dave/gnu/gcc/gcc/gcc/testsuite/g++.dg/ip
a/pr64059.C -fno-diagnostics-show-caret -fdiagnostics-color=never -nostdinc++
-I/home/dave/gnu/gcc/objdir/hppa-linux-gnu/libstdc++-v3/include/hppa-linux-gnu
-I/
home/dave/gnu/gcc/objdir/hppa-linux-gnu/libstdc++-v3/include
-I/home/dave/gnu/gc
c/gcc/libstdc++-v3/libsupc++
-I/home/dave/gnu/gcc/gcc/libstdc++-v3/include/backw
ard -I/home/dave/gnu/gcc/gcc/libstdc++-v3/testsuite/util -fmessage-length=0
-std
=gnu++98 -r -nostdlib -O2 -flto -fno-devirtualize -S -o pr64059.s
/home/dave/gnu/gcc/gcc/gcc/testsuite/g++.dg/ipa/pr64059.C:56:1: internal
compiler error: Segmentation fault
0x685e57 crash_signal
        ../../gcc/gcc/toplev.c:358
0x894508 get_binfo_at_offset(tree_node*, long long, tree_node*)
        ../../gcc/gcc/tree.c:11914
0x4d044f possible_polymorphic_call_targets(tree_node*, long long,
ipa_polymorphi
c_call_context, bool*, void**, bool)
        ../../gcc/gcc/ipa-devirt.c:2404
0x5661db possible_polymorphic_call_targets(cgraph_edge*, bool*, void**, bool)
        ../../gcc/gcc/ipa-utils.h:109
0x5661db compute_ltrans_boundary(lto_symtab_encoder_d*)
        ../../gcc/gcc/lto-cgraph.c:952
0x5bfabb ipa_write_summaries(bool)
        ../../gcc/gcc/passes.c:2511
0x327e53 ipa_passes
        ../../gcc/gcc/cgraphunit.c:2093
0x327e53 symbol_table::compile()
        ../../gcc/gcc/cgraphunit.c:2189
0x32936b symbol_table::finalize_compilation_unit()
        ../../gcc/gcc/cgraphunit.c:2338
0x191527 cp_write_global_declarations()
        ../../gcc/gcc/cp/decl2.c:4688
Please submit a full bug report,