[Bug middle-end/58199] New: [4.9 regression] ICE in dump_type_inheritance_graph

[schwab@linux-m68k.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58199

            Bug ID: 58199
           Summary: [4.9 regression] ICE in dump_type_inheritance_graph
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: schwab@linux-m68k.org
                CC: jh at suse dot cz

Broken by r201836.

$ gcc/xgcc -Bgcc/ -fno-diagnostics-show-caret -fdiagnostics-color=never -w -O2
-dumpbase dump-noaddr.c -DMASK=1 -x c --param ggc-min-heapsize=1 -fdump-ipa-all
-fdump-rtl-all -fdump-tree-all -fdump-noaddr -c -o dump-noaddr.o
../gcc/testsuite/gcc.c-torture/unsorted/dump-noaddr.c 
../gcc/testsuite/gcc.c-torture/unsorted/dump-noaddr.c:59:1: internal compiler
error: Segmentation fault
0x8e104f crash_signal
        ../../gcc/toplev.c:335
0x77f77d dump_type_inheritance_graph
        ../../gcc/ipa-devirt.c:322
0x77f77d build_type_inheritance_graph()
        ../../gcc/ipa-devirt.c:363
0x603f2b analyze_functions
        ../../gcc/cgraphunit.c:854
0x605110 finalize_compilation_unit()
        ../../gcc/cgraphunit.c:2151
0x4dec62 c_write_global_declarations()
        ../../gcc/c/c-decl.c:10125