https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95677
--- Comment #2 from liusujian <sujian.liu at huawei dot com> ---
(In reply to Richard Biener from comment #1)
> It's more likely the GENERIC / cgraph output by the C++ frontend is not
> correct
> and works by accident without LTO. Initial symbol table:
>
> Initial Symbol table:
>
> int {anonymous}::xx/3 (int {anonymous}::xx) @0x7f615d2d8180
> Type: variable
> Visibility: external
> References:
> Referring: _ZN12_GLOBAL__N_13fooEv/0 (write)
> Availability: not-ready
> Varpool flags:
> main/2 (int main()) @0x7f615d421168
> Type: function definition analyzed
> Visibility: force_output no_reorder public
> Aux: @0x37a5000
> References: int {anonymous}::xx/1 (write)
> Referring:
> Function flags: body
> Called by:
> Calls:
> int {anonymous}::xx/1 (int {anonymous}::xx) @0x7f615d2d8100
> Type: variable definition analyzed
> Visibility: force_output no_reorder
> Aux: @0x7f615d421168
> References:
> Referring: main/2 (write)
> Availability: not-ready
> Varpool flags: initialized
> _ZN12_GLOBAL__N_13fooEv/0 (void {anonymous}::foo()) @0x7f615d421000
> Type: function definition analyzed
> Visibility: force_output no_reorder
> Aux: @0x7f615d2d8100
> References: int {anonymous}::xx/3 (write)
> Referring:
> Function flags: body
> Called by:
> Calls:
>
> where you can see there are actually two 'xx' objects and the C++ FE
> takes it up to the linker/assembler to resolve them. But the symtab
> code does not include such "resolving" step.
In other words, C++ is currently unable to deal with this scenario ? Or any
other problems cause the error?