[Bug lto/87089] [9 regression] tree check: expected class 'type', have 'declaration' (namespace_decl) in type_with_linkage_p, at ipa-utils.h

[dimhen at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87089

Dmitry G. Dyachenko <dimhen at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |---

--- Comment #5 from Dmitry G. Dyachenko <dimhen at gmail dot com> ---
r267346 PASS
r267418 FAIL

PR87089]$ g++ -flto -fPIC -DPIC -shared a.o b.o
b.ii:6:8: warning: type ‘struct ASN1C_CertificateListAssertion’ violates the
C++ One Definition Rule [-Wodr]
    6 | struct ASN1C_CertificateListAssertion : a{} * b;
      |        ^
a.ii:2:8: note: a type with different bases is defined in another translation
unit
    2 | struct ASN1C_CertificateListAssertion {
      |        ^
during IPA pass: pure-const
lto1: internal compiler error: tree check: expected class ‘type’, have
‘declaration’ (namespace_decl) in type_with_linkage_p, at ipa-utils.h:185
0x732d05 tree_class_check_failed(tree_node const*, tree_code_class, char
const*, int, char const*)
        /home/dimhen/src/gcc_current/gcc/tree.c:9856
0xc1880a maybe_record_node
        /home/dimhen/src/gcc_current/gcc/ipa-devirt.c:2531
0xc1ec81 possible_polymorphic_call_targets(tree_node*, long,
ipa_polymorphic_call_context, bool*, void**, bool)
        /home/dimhen/src/gcc_current/gcc/ipa-devirt.c:3340
0xc55506 possible_polymorphic_call_targets(cgraph_edge*, bool*, void**, bool)
        /home/dimhen/src/gcc_current/gcc/ipa-utils.h:118
0xc55506 walk_polymorphic_call_targets
        /home/dimhen/src/gcc_current/gcc/ipa.c:183
0xc57cd4 symbol_table::remove_unreachable_nodes(_IO_FILE*)
        /home/dimhen/src/gcc_current/gcc/ipa.c:427
0x98d642 read_cgraph_and_symbols
        /home/dimhen/src/gcc_current/gcc/lto/lto.c:2978
0x98d642 lto_main()
        /home/dimhen/src/gcc_current/gcc/lto/lto.c:3362
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
lto-wrapper: fatal error: g++ returned 1 exit status
compilation terminated.
/usr/local/gdb_current/bin/ld: error: lto-wrapper failed
collect2: error: ld returned 1 exit status
[dimhen:dim PR87089]$ g++ -v
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/usr/local/gcc_current/libexec/gcc/x86_64-pc-linux-gnu/9.0.0/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none
Target: x86_64-pc-linux-gnu
Configured with: /home/dimhen/src/gcc_current/configure
--prefix=/usr/local/gcc_current --enable-checking=yes,df,fold,rtl,extra
--enable-languages=c,c++,lto --disable-multilib --enable-shared
--enable-threads=posix --enable-__cxa_atexit --disable-libunwind-exceptions
--enable-gnu-unique-object --enable-linker-build-id
--with-linker-hash-style=gnu --enable-plugin --enable-initfini-array --with-isl
--enable-libmpx --enable-offload-targets=nvptx-none --without-cuda-driver
--enable-gnu-indirect-function --with-tune=native
Thread model: posix
gcc version 9.0.0 20181225 (experimental) [trunk revision 267418] (GCC)