[Bug c++/82067] New: G++ has an internal compiler error in possible_polymorphic_call_targets, at ipa-devirt.c:1557

["jupitercuso4 at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82067

            Bug ID: 82067
           Summary: G++ has an internal compiler error in
                    possible_polymorphic_call_targets, at
                    ipa-devirt.c:1557
           Product: gcc
           Version: 4.9.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jupitercuso4 at gmail dot com
  Target Milestone: ---

Applied patch from PR60871 but it still fails:

$ gcc -v
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/project/usr-tensilica-RHEL5/stools-8.0-2017-06-05/bin/../libexec/gcc/x86_64-pc-linux-gnu/4.9.4/lto-wrapper
Target: x86_64-pc-linux-gnu
../gcc-4.9.4/configure --with-checking=release --build=x86_64-pc-linux-gnu
-enable-languages=c,c++ --disable-libgcj --prefix=/usr/bin

$  g++ -c -O2 -g -MD -Werror -Wno-unused-value -fPIC  -Wall -Werror -O3
-fomit-frame-pointer -std=gnu++0x -Wno-non-virtual-dtor -Wno-write-strings
-Wno-deprecated -Wno-parentheses -Wno-delete-non-virtual-dtor -Wno-parentheses
-Wno-unused-variable test.cpp

test.cpp:32:1: internal compiler error: in possible_polymorphic_call_targets,
at ipa-devirt.c:1557

0x6828cb possible_polymorphic_call_targets(tree_node*, long,
ipa_polymorphic_call_context, bool*, void**, int*)
        ../../gcc-4.9.4/gcc/ipa-devirt.c:1557
0x665cea possible_polymorphic_call_targets(tree_node*, bool*, void**)
        ../../gcc-4.9.4/gcc/ipa-utils.h:142
0xc87198 gimple_fold_call
        ../../gcc-4.9.4/gcc/gimple-fold.c:1127
0xc87198 fold_stmt_1
        ../../gcc-4.9.4/gcc/gimple-fold.c:1302
0xd909b8 fold_marked_statements
        ../../gcc-4.9.4/gcc/tree-inline.c:4549
0xd8c2e0 optimize_inline_calls(tree_node*)
        ../../gcc-4.9.4/gcc/tree-inline.c:4630
0xf48b89 inline_transform(cgraph_node*)
        ../../gcc-4.9.4/gcc/ipa-inline-transform.c:457
0xd1b58a execute_one_ipa_transform_pass
        ../../gcc-4.9.4/gcc/passes.c:2066
0xd1b58a execute_all_ipa_transforms()
        ../../gcc-4.9.4/gcc/passes.c:2107
0xbd8abd expand_function
        ../../gcc-4.9.4/gcc/cgraphunit.c:1775
0xf99653 expand_all_functions
        ../../gcc-4.9.4/gcc/cgraphunit.c:1916
0xf99653 compile()
        ../../gcc-4.9.4/gcc/cgraphunit.c:2260
0xf98f17 finalize_compilation_unit()
        ../../gcc-4.9.4/gcc/cgraphunit.c:2337
0xb149dd cp_write_global_declarations()
        ../../gcc-4.9.4/gcc/cp/decl2.c:4647
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