[Bug middle-end/63422] [5.0 Regression] ICE in freqs_to_counts_path, at tree-ssa-threadupdate.c:981

["trippels at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63422

Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |trippels at gcc dot gnu.org

--- Comment #4 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Created attachment 33636
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33636&action=edit
testcase

Here is a relative small testcase:

markus@x4 /tmp % g++ -flto -fprofile-use -fno-exceptions -std=gnu++0x -O2
mozilla-xremote-client.ii XRemoteClient.ii
/var/tmp/mozilla-central/widget/xremoteclient/mozilla-xremote-client.cpp: In
function âmainâ:
/var/tmp/mozilla-central/widget/xremoteclient/mozilla-xremote-client.cpp:16:5:
internal compiler error: in freqs_to_counts_path, at
tree-ssa-threadupdate.c:988
 int main(int argc, char **argv)
     ^
0xb00cf0 freqs_to_counts_path
        ../../gcc/gcc/tree-ssa-threadupdate.c:988
0xb00cf0 ssa_fix_duplicate_block_edges(redirection_data*, ssa_local_info_t*)
        ../../gcc/gcc/tree-ssa-threadupdate.c:1061
0xb02260 ssa_fixup_template_block
        ../../gcc/gcc/tree-ssa-threadupdate.c:1301
0xb02260 traverse_noresize<ssa_local_info_t*, ssa_fixup_template_block>
        ../../gcc/gcc/hash-table.h:942
0xb02260 traverse<ssa_local_info_t*, ssa_fixup_template_block>
        ../../gcc/gcc/hash-table.h:964
0xb02260 thread_block_1
        ../../gcc/gcc/tree-ssa-threadupdate.c:1523
0xb02994 thread_block
        ../../gcc/gcc/tree-ssa-threadupdate.c:1560
0xb031dd thread_through_all_blocks(bool)
        ../../gcc/gcc/tree-ssa-threadupdate.c:2279
0xb856a1 finalize_jump_threads
        ../../gcc/gcc/tree-vrp.c:9856
0xb856a1 execute_vrp
        ../../gcc/gcc/tree-vrp.c:10010
0xb856a1 execute
        ../../gcc/gcc/tree-vrp.c:10073
Please submit a full bug report,